Day 12

• • Mask Effectiveness for Preventing Secondary Cases of COVID-19, Johnson County, Iowa, USA - Riley et al. (MMWR)

  • How Did We Get Here: What Are Droplets and Aerosols and How Far Do They Go? A Historical Perspective on the Transmission of Respiratory Infectious Diseases - Randall et al.

Day 2

• • Insufficient ventilation led to a probable long-range airborne transmission of SARS-CoV-2 on two buses - Ou et al.

Day 1

• • Multicomponent Strategies to Prevent SARS-CoV-2 Transmission — Nine Overnight Youth Summer Camps, United States, June–August 2021 - Van Naarden Braun et al. (MMWR)

  • School Safety, Masking, and the Delta Variant - Boutzoukas et al.

Day 30

• • Analysis of overdispersion in airborne transmission of Covid-19 - Chaudhuri et al.

Day 29

• • Quantifying human and environmental viral load relationships amidst mitigation strategies in a controlled chamber with participants having COVID-19 - Parhizkar et al.

Day 26

• • Face mask fit modifications that improve source control performance - Blachere et al.

Day 24

• • Association Between K–12 School Mask Policies and School-Associated COVID-19 Outbreaks — Maricopa and Pima Counties, Arizona, July–August 2021 - Jehn et al. (MMWR)

  • Pediatric COVID-19 Cases in Counties With and Without School Mask Requirements — United States, July 1–September 4, 2021 - Budzyn et al. (MMWR)

  • COVID-19–Related School Closures and Learning Modality Changes — United States, August 1–September 17, 2021 - Parks et al. (MMWR)

  • Airborne protection for staff is associated with reduced hospital-acquired COVID-19 in English NHS Trusts - Lawton, Butler, Peters

Day 22

• • Airborne transmission of SARS-CoV-2 in indoor environments: A comprehensive review - Shen et al.

  • The removal of airborne SARS-CoV-2 and other microbial bioaerosols by air filtration on COVID-19 surge units - Conway-Morris et al.

Day 21

• • Echoes Through Time: The Historical Origins of the Droplet Dogma and its Role in the Misidentification of Airborne Respiratory Infection Transmission - Jimenez et al.

  • Assessment of Environmental and Occupational Risk Factors for the Mitigation and Containment of a COVID-19 Outbreak in a Meat Processing Plant - Walshe et al.

Day 20

• • Spread of SARS-CoV-2 in hospital areas - Grimalt et al.

Day 15

• • Far-UVC efficiently inactivates an airborne pathogen in a room-sized chamber - Ewan et al.

Day 14

• • Infectious SARS-CoV-2 in Exhaled Aerosols and Efficacy of Masks During Early Mild Infection - Adenaiye et al.

  • Honey bee (Apis mellifera L.) colonies as bioindicators of environmental SARS-CoV-2 occurrence - Cilia et al.

  • Airborne SARS-CoV-2 surveillance in hospital environment using high-flowrate air samplers and its comparison to surface sampling - Ang et al.

Day 13

• • Modeling the impacts of physical distancing and other exposure determinants on aerosol transmission - Wagner et al.

Day 9

• • Associations between acute exposures to PM2.5 and carbon dioxide indoors and cognitive function in office workers: a multicountry longitudinal prospective observational study - Laurent et al.

Day 8

• • Assessing the impact of widespread respirator use in curtailing COVID-19 transmission in the USA - Ngonghala et al.

Day 3

• • Hospitalizations Associated with COVID-19 Among Children and Adolescents — COVID-NET, 14 States, March 1, 2020–August 14, 2021 - Delahoy et al. (MMWR)

Day 2

• • Environmental Surveillance and Transmission Risk Assessments for SARS-CoV-2 in a Fitness Center - Li et al.

Day 31

• • Unintended Consequences of Air Cleaning Chemistry - Collins and Farmer

  • Case studies of DIY air cleaners - UC Davis

Day 30

• • Implication of coughing dynamics on safe social distancing in an indoor environment—A numerical perspective - Muthusamy et al.

Day 27

• • Outbreak Associated with SARS-CoV-2 B.1.617.2 (Delta) Variant in an Elementary School — Marin County, California, May–June 2021 - Lam-Hine et al. (MMWR)

  • Measurements and Simulations of Aerosol Released while Singing and Playing Wind Instruments - Stockman et al.

  • COVID-19 Case Rates in Transitional Kindergarten Through Grade 12 Schools and in the Community — Los Angeles County, California, September 2020–March 2021 - Yin et al. (MMWR)

  • Filtration Performance of Layering Masks and Face Coverings and the Reusability of Cotton Masks after Repeated Washing and Drying - Sankhyan (Vance) et al.

Day 26

• • Airborne transmission of respiratory viruses - Wang et al.

Day 23

• • Seroconversion and fever are dose-pependent in a nonhuman primate model of inhalational COVID-19 - Dabisch et al.

  • The SARS-CoV-2 Delta variant is poised to acquire complete resistance to wild-type spike vaccines - Liu et al.

Day 20

• • SARS-CoV-2 aerosol transmission in schools: the effectiveness of different interventions - Villers et al.

Day 18

• • The size and culturability of patient-generated SARS-CoV-2 aerosol - Santarpia et al.

Day 11

• • Room-Level Ventilation in Schools and Universities - McNeill et al.

  • COVID-19 Projections for K12 Schools in Fall 2021: Significant Transmission without Interventions - Zhang et al.

Day 10

• • Infectious SARS-CoV-2 is emitted in aerosols - Hawks et al.

Day 8

• • Aerosols from speaking can linger in the air for up to nine hours - Ding et al.

Day 6

• • Viral Load of SARS-CoV-2 in Respiratory Aerosols Emitted by COVID-19 Patients while Breathing, Talking, and Singing - Coleman et al.

  • Extended short-range airborne transmission of respiratory infections - Chen et al.

  • Portable Air Cleaner Test Report: Intellipure Compact Air Purifier - Brent Stephens + team

Day 5

• • Fomites and the environment did not have an important role in COVID-19 transmission in a Brazilian mid-sized city - Silva Rocha et al.

Day 31

• • Virological and serological kinetics of SARS-CoV-2 Delta variant vaccine-breakthrough infections: a multi-center cohort study - Chia et al.

Day 30

• • Outbreak of SARS-CoV-2 Infections, Including COVID-19 Vaccine Breakthrough Infections, Associated with Large Public Gatherings — Barnstable County, Massachusetts, July 2021 - Brown et al. (MMWR)

  • Relative Humidity Predicts Day-to-Day Variations in COVID-19 Cases in the City of Buenos Aires - Pineda Rojas et al.

Day 29

• • Laboratory Study of Physical Barrier Efficiency for Worker Protection against SARS-CoV-2 while Standing or Sitting - Bartels et al.

Day 23

• • Nine Lessons Learned From the COVID-19 Pandemic for Improving Hospital Care and Health Care Delivery - Wei et al.

Day 21

• • Strategies to minimize SARS-CoV-2 transmission in classroom settings: combined impacts of ventilation and mask effective filtration efficiency - Rothamer et al.

  • Double masking protection vs. comfort—A quantitative assessment - Arumuru et al.

  • Patterns of SARS-CoV-2 aerosol spread in typical classrooms - Rencken et al.

Day 15

• • Self-infection with speech aerosol may contribute to COVID-19 severity - Kushalnagar et al.

Day 14

• • Formation of Oxidized Gases and Secondary Organic Aerosol from a Commercial Oxidant-Generating Electronic Air Cleaner - Joo et al.

Day 13

• • SARS-CoV-2 test positivity rate in Reno, Nevada: association with PM2.5 during the 2020 wildfire smoke events in the western United States - Kiser et al.

Day 2

• • Efficacy of Portable Air Cleaners and Masking for Reducing Indoor Exposure to Simulated Exhaled SARS-CoV-2 Aerosols — United States, 2021 - Lindsley et al.

Day 1

• • Fluid Dynamics of Respiratory Infectious Diseases - Bourouiba

Day 30

• • FFP3 respirators protect healthcare workers against infection with SARS-CoV-2 - Ferris et al.

Day 29

• • Identification of SARS-CoV-2 RNA in healthcare heating, ventilation, and air conditioning units - Horve et al.

Day 28

• • Wearable materials with embedded synthetic biology sensors for biomolecule detection - Nguyen et al.

Day 24

• • Use of portable air cleaners to reduce aerosol transmission on a hospital COVID-19 ward - Buising et al.

Day 23

• • Transfer rate of enveloped and non-enveloped viruses between fingerpads and surfaces - Anderson and Boehm

Day 22

• • Nosocomial Outbreak of COVID-19 in a Hematologic Ward - Jung et al.

Day 18

• • The Risk of SARS-CoV-2 Transmission from Patients with Undiagnosed Covid-19 to Roommates in a Large Academic Medical Center - Karan et al.

Day 16

• • THE ASSOCIATION OF OPENING K-12 SCHOOLS WITH THE SPREAD OF COVID-19 IN THE UNITED STATES: COUNTY-LEVEL PANEL DATA ANALYSIS - Chernozhukov et al.

  • Aerosol Dynamics Model for Estimating the Risk from Short-Range Airborne Transmission and Inhalation of Expiratory Droplets of SARS-CoV-2 - Dhawan and Biswas

Day 11

• • What is the risk of acquiring SARS-CoV-2 from the use of public toilets? - Dancer et al.

  • Universal Use of N95s in Healthcare Settings when Community Covid-19 Rates are High - Klompas et al.

  • Probable aerosol transmission of SARS-CoV-2 in a poorly ventilated courtroom - Vernez et al.

  • Application of CO2 monitoring as an approach to managing ventilation to mitigate SARS-CoV-2 transmission - SAGE

Day 8

• • Expiratory aerosol particle escape from surgical masks due to imperfect sealing - Cappa et al.

  • Nosocomial Outbreak of COVID-19 in a Hematologic Ward - Jung et al.

  • Breathing, speaking, coughing or sneezing: What drives transmission of SARS-CoV-2? - Stadnytskyi et al.

Day 4

• • Slight reduction in SARS-CoV-2 exposure viral load due to masking results in a significant reduction in transmission with widespread implementation - Goyal et al.

  • Household COVID-19 risk and in-person schooling - Lessler et al.

Day 1

• • Update Alert 9: Epidemiology of and Risk Factors for Coronavirus Infection in Health Care Workers - Chou et al.

Day 30

• • Mitigation of Airborne Contaminant Spread through Simple Interventions in an Occupied Single-Family Home - Khan et al.

Day 27

• • Experimental investigation to verify if excessive plastic sheeting shielding produce micro clusters of SARS-CoV-2 - Ishigaki et al.

Day 26

• • Characterization of the public transit air microbiome and resistome reveals geographical specificity - Leung et al.

Day 25

• • Letter: Aerosols should not be defined by distance travelled - Tang, Marr, Milton

Day 24

• • Results for Aerosol Treatment Technology Evaluation with Cold Plasma Bipolar Ionization Device - EPA

Day 21

• • Mask Use and Ventilation Improvements to Reduce COVID-19 Incidence in Elementary Schools — Georgia, November 16–December 11, 2020 - Gettings et al.

Day 20

• • Face masks effectively limit the probability of SARS-CoV-2 transmission - Cheng et al.

Day 18

• • Asymptomatic transmission and high community burden of seasonal influenza in an urban and a rural community in South Africa, 2017–18 (PHIRST): a population cohort study - Cohen et al.

  • Assessing the effect of beard hair lengths on face masks used as personal protective equipment during the COVID-19 pandemic - Prince et al.

Day 14

• • A paradigm shift to combat indoor respiratory infection - Morawska et al.

  • Monitors to Improve Indoor Carbon Dioxide Concentrations in the Hospital: Background, Rationale and Protocol for a Randomized, Sham-controlled, Cross-Over, Open Label Trial - Laurent and Frans

Day 11

• • Airborne Transmission of COVID-19 and Mitigation Using Box Fan Air Cleaners in a Poorly Ventilated Classroom - He et al.

Day 6

• • Aerosol generating procedures: are they of relevance for transmission of SARS-CoV-2? - Hamilton et al.

Day 4

• • What is the relationship between indoor air quality parameters and airborne microorganisms in hospital environments? A systematic review and meta‐analysis - Hiwar et al.

Day 28

• • 3D Printed Mask Frames Improve the Inward Protection Efficiency of a Cloth Mask - Tong et al.

  • Effectiveness of portable air filtration on reducing indoor aerosol counts: preclinical observational trials - Lee et al.

Day 27

• • Indicators for Risk of Airborne Transmission in Shared Indoor Environments and their application to COVID-19 Outbreaks - Peng et al.

  • A guideline to limit indoor airborne transmission of COVID-19 - Bazant and Bush

Day 26

• • Filtration efficiency of a large set of COVID-19 face masks commonly used in Brazil - Morais et al.

  • Designing infectious disease resilience into school buildings through improvements to ventilation and air cleaning - Corsi et al.

Day 24

• • Transmission of SARS-CoV-2 on a Patient Transport Van - Jones et al.

Day 21

• • Australia must act to prevent airborne transmission of SARS-CoV-2 - Hyde, Berger, & Miller

  • COVID-19 transmission in Hong Kong despite universal masking - Martín-Sánchez et al.

Day 20

• • Facemask and social distancing, pillars of opening up economies - Najmi et al.

Day 16

• • Heterogeneity in transmissibility and shedding SARS-CoV-2 via droplets and aerosols - Chen et al.

  • Indoor Air Changes and Potential Implications for SARS-CoV-2 Transmission - Allen and Ibrahim

  • Fitted Filtration Efficiency of Double Masking During the COVID-19 Pandemic - Sickbert-Bennett et al.

Day 15

• • Ten scientific reasons in support of airborne transmission of SARS-CoV-2 - Greenhalgh et al.

Day 14

• • Editorial: Covid-19 has redefined airborne transmission - Tang et al.

Day 13

• • Measurements and Simulations of Aerosol Released while Singing and Playing Wind Instruments - Stockman et al.

Day 7

• • Monitoring carbon dioxide to quantify the risk of indoor airborne transmission of COVID-19 - Bazant et al.

Day 5

• • Community Transmission of SARS-CoV-2 Associated with a Local Bar Opening Event — Illinois, February 2021 - Sami et al.

  • Exhaled CO2 as a COVID-19 Infection Risk Proxy for Different Indoor Environments and Activities - Peng and Jimenez

  • Epidemiologic Evidence for Airborne Transmission of SARS-CoV-2 during Church Singing, Australia, 2020 - Katelaris et al.

Day 2

• • Simulating near-field enhancement in transmission of airborne viruses with a quadrature-based model - Fierce et al.

Day 1

• • Designing infectious disease resilience into school buildings through improvements to ventilation and air cleaning - Lancet Commission

Day 31

• • Use of portable air cleaners to reduce aerosol transmission on a hospital COVID-19 ward - Buising et al.

  • Direct numerical simulation of turbulent dispersion of evaporative aerosol clouds produced by an intense expiratory event - Fabregat et al.

Day 30

• • Respiratory aerosols and droplets in the transmission of infectious diseases (preprint) - Pöhlker et al.

  • The effect of respiratory activity, non‐invasive respiratory support and facemasks on aerosol generation and its relevance to COVID‐19 - Wilson et al.

Day 29

• • Survey of Home‐Use UV Disinfection Products - Zhazova et al.

Day 27

• • Assessment of CO2 and aerosol (PM2.5, PM10, UFP) concentrations during the reopening of schools in the COVID-19 pandemic: The case of a metropolitan area in Central-Southern Spain - Villanueva et al.

Day 24

• • Ventilation procedures to minimize the airborne transmission of viruses at schools - Stabile et al. (& Morawksa)

Day 23

• • Transmission and reduction of aerosols in classrooms using air purifier systems - Burgmann and Janoske

  • Higher airborne pollen concentrations correlated with increased SARS-CoV-2 infection rates, as evidenced from 31 countries across the globe - Damialis et al.

  • The physics of particle formation and deposition during breathing - Morawska and Buonanno

Day 22

• • Aerosol generation in public restrooms - Schreck et al.

  • Transmissibility and transmission of respiratory viruses - Leung

Day 19

• • SARS-CoV-2 transmission without symptoms - Rasmussen and Propescu

Day 18

• • Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 during Border Quarantine and Air Travel, New Zealand (Aotearoa) - Eichler et al.

  • Covid-19 and workers’ protection: lessons to learn, and lessons overlooked - Agius and MacDermott

Day 17

• • The ventilation of buildings and other mitigating measures for COVID-19: a focus on wintertime - Burridge et al.

Day 16

• • Droplets and aerosols: An artificial dichotomy in respiratory virus transmission - Drossinos et al.

Day 13

• • Probable airborne transmission of SARS-CoV-2 in a poorly ventilated restaurant - Li et al.

Day 12

• • Filtration evaluation of expired elastomeric P-100 filter cartridges after months of real-world use during the COVID-19 pandemic - Baffoe-Bonnie et al.

Day 11

• • Transmission of SARS-CoV-2 from asymptomatic and presymptomatic individuals in healthcare settings despite medical masks and eye protection - Klompas et al.

Day 10

• • School reopening without robust COVID-19 mitigation risks accelerating the pandemic - Gurdasani et al.

  • Effectiveness of three versus six feet of physical distancing for controlling spread of COVID-19 among primary and secondary students and staff: A retrospective, state-wide cohort study - van den Berg

  • Inward and outward effectiveness of cloth masks, a surgical mask, and a face shield - Pan et al. (Marr)

Day 9

• • Distribution of SARS-CoV-2 RNA signal in a home with COVID-19 positive occupants - Maestre et al.

Day 7

• • Evaluating a commercially available in-duct bipolar ionization device for pollutant removal and potential byproduct formation - Zeng et al.

Day 5

• • On secondary atomization and blockage of surrogate cough droplets in single- and multilayer face masks - Sharma et al.

Day 3

• • Medical face masks offer self-protection against aerosols: An evaluation using a practical in vitro approach on a dummy head - Sterr et al.

Days 1

• • Household COVID-19 risk and in-person schooling - Lessler et al.

Day 28

• • Computational Fluid Dynamics Modeling of Cough Transport in an Aircraft Cabin - Davis et al.

  • COVID-19 Commission Task force on Safe Work, Safe School, and Safe Travel - Lancet Commission

Day 23

• • Exhaled aerosol increases with COVID-19 infection, age, and obesity - Edwards et al.

Day 19

• • A comparison of performance metrics for cloth face masks as source control devices for simulated cough and exhalation aerosols - Lindsley et al.

Day 18

• • Quantitative Protection Factors for Common Masks and Face Coverings - Leith (Volckens) et al.

Day 11

• • Hydrating the Respiratory Tract: An Alternative Explanation Why Masks Lower Severity of COVID-19 - Courtney and Bax

Day 10

• • Effectiveness of Mask Wearing to Control Community Spread of SARS-CoV-2 - Brooks et al.

  • The effect of respiratory activity, ventilatory therapy and facemasks on total aerosol emissions - Wilson et al.

  • Aerosol and bioaerosol particle size and dynamics from defective sanitary plumbing systems - Gormley, Aspray, and Kelly

Day 9

• • Aerosol emission from the respiratory tract: an analysis of relative risks from oxygen delivery systems - Hamilton et al.

Day 5

• • Comparing Aerosol Concentrations and Particle Size Distributions Generated by Singing, Speaking and Breathing - Gregson et al.

  • Covid-19: Risk of aerosol transmission to staff outside of intensive care is likely to be higher than predicted - Torjesen

Day 2

• • Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study - Marks et al.

Day 29

• • Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League - Mac et al.

Day 28

• • Testing mobile air purifiers in a school classroom: Reducing the airborne transmission risk for SARS-CoV-2 - Curtius et al.

Day 27

• • SARS-CoV-2 infection among healthcare workers despite the use of surgical masks and physical distancing - the role of airborne transmission - Goldberg et al.

Day 26

• • On airborne virus transmission in elevators and confined spaces - Dbouk et al.

Day 21

• • Assessment of Existing Ventilation Conditions and Comparison to Recommendations for Reducing Risk of Virus Transmission - Risk Management (consulting; not reviewed)

  • Beyond Six Feet: A Guideline to Limit Indoor Airborne Transmission of COVID-19 - Bazant et al.

  • Basic routes of transmission of respiratory pathogens—A new proposal for transmission categorization based on respiratory spray, inhalation, and touch - Yuguo Li

Day 19

• • Mask-wearing and control of SARS-CoV-2 transmission in the USA: a cross-sectional study - Rader et al.

  • Modelling uncertainty in the relative risk of exposure to the SARS-CoV-2 virus by airborne aerosol transmission in well mixed indoor air - Jones et al.

Day 18

• • Airborne Transmission of SARS-CoV-2: What We Know - Samet et al.

Day 15

• • Isolation of SARS-CoV-2 from the air in a car driven by a COVID patient with mild illness - Lednicky et al.

Day 12

• • Expiratory aerosol particle escape from surgical masks due to imperfect sealing - Cappa et al.

  • Dismantling myths on the airborne transmission of severe acute respiratory syndrome coronavirus (SARS-CoV-2) - Tang et al.

Day 11

• • Indoor dust as a matrix for surveillance of COVID-19 outbreaks - Renninger et al.

Day 7

• • Mechanistic transmission modeling of COVID-19 on the Diamond Princess cruise ship demonstrates the importance of aerosol transmission - Azimi et al.

Day 5

• • Accurate Representations of the Microphysical Processes Occurring during the Transport of Exhaled Aerosols and Droplets - Walker et al.

Day 4

• • Strategies to minimize SARS-CoV-2 transmission in classroom settings: Combined impacts of ventilation and mask effective filtration efficiency - Rothamer et al.

  • Community Transmission of SARS-CoV-2 by Surfaces: Risks and Risk Reduction Strategies - Pitol et al.

Day 29

• • Masks and Face Coverings for the Lay Public - Czypionka et al.

Day 28

• • SARS-CoV-2 disease severity and transmission efficiency is increased for airborne but not fomite exposure in Syrian hamsters -Port et al.

Day 25

• • Aerosol transmission, an indispensable route of COVID-19 spread: case study of a department-store cluster - Jiang et al.

Day 23

• • Assessment of Air Contamination by SARS-CoV-2 in Hospital Settings - Birgand et al.

Day 22

• • Measurement of small droplet aerosol concentrations in public spaces using handheld particle counters - Somsen et al.

Day 18

• • Scientific evidence supports aerosol transmission of SARS-COV-2 - MacIntyre & Ananda-Raja

Day 16

• • Possible Aerosol Transmission of COVID-19 Associated with an Outbreak in an Apartment in Seoul, South Korea, 2020 - Hwang et al

Day 15

• • Effects of space sizes on the dispersion of cough-generated droplets from a walking person - Li et al.

  • Uniting Infectious Disease and Physical Science Principles on the Importance of Face Masks for COVID-19 - Gandhi and Marr

  • What Is an Aerosol-Generating Procedure? - Klompas et al.

Day 10

• • Evaluation of Cloth Masks and Modified Procedure Masks as Personal Protective Equipment for the Public During the COVID-19 Pandemic - Clapp et al.

Day 8

• • On the concentration of SARS-CoV-2 in outdoor air and the interaction with pre-existing atmospheric particles - Belosi et al.

Day 7

• • Filtering Facepiece Respirators with an Exhalation Valve: Measurements of Filtration Efficiency to Evaluate Their Potential for Source Control - CDC/NIOSH report

Day 4

• • Airflows inside passenger cars and implications for airborne disease transmission - Matthai et al.

  • Analyzing the dominant SARS-CoV-2 transmission routes toward an ab initio disease spread model - Chaudhuri et al.

  • Assessing the effectiveness of using various face coverings to mitigate the transport of airborne particles produced by coughing indoors - Li et al.

Day 3

• • Face masks considerably reduce COVID-19 cases in Germany - Mitze et al.

Day 2

• • Severe Acute Respiratory Syndrome Coronavirus 2 Outbreak Related to a Nightclub, Germany, 2020 - Muller et al.

  • Properties of materials considered for improvised masks - Rogak et al.

  • Association of Country-wide Coronavirus Mortality with Demographics, Testing, Lockdowns, and Public Wearing of Masks - Leffler et al.

Day 25

• Review: Airborne Transmission of COVID-19: Aerosol Dispersion, Lung Deposition, and Virus-Receptor Interactions - Zuo et al.

Day 24

• Aerosol penetration through fabrics: Experiments and theory - Hu et al.

• Propagation in outdoor environments of aerosol droplets produced by breath and light cough - Maggiore et al

Day 23

• Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea - Kwon et al.

Day 20

• Trends in County-Level COVID-19 Incidence in Counties With and Without a Mask Mandate — Kansas, June 1–August 23, 2020 - Van Dyke et al.

• Scientific Brief: Community Use of Cloth Masks to Control the Spread of SARS-CoV-2 - CDC

Day 19

• Longitudinal monitoring of SARS-CoV-2 RNA on high-touch surfaces in a community setting - Harvey et al.

• A case study of extended in-flight transmission of SARS-CoV-2 en route to Aotearoa New Zealand - Swadi et al.

Day 17

• Master Question List for COVID-19 (caused by SARS-CoV-2) - DHS report

Day 16

• In China, Students in Crowded Dormitories with a Low Ventilation Rate Have More Common Colds: Evidence for Airborne Transmission - Sun et al.

Day 11

• Long-distance airborne dispersal of SARS-CoV-2 in COVID-19 wards - Nissen et al.

• COVID-19 Viral Loads, Environment, Ventilation, Masks, Exposure Time, And Severity – A Pragmatic Guide Of Estimates - Epperly et al.

Day 10

• Mobility network models of COVID-19 explain inequities and inform reopening - Chang et al.

• Heterogeneity in transmissibility and shedding SARS-CoV-2 via droplets and aerosols - Chen et al.

Day 6

• Epidemiology and transmission dynamics of COVID-19 in two Indian states (superspreading) - Laxminarayan et al.

• The role of respiratory droplet physicochemistry in limiting and promoting the airborne transmission of human coronaviruses: A critical review - Niazi et al.

• Aerosol Penetration Through Fabrics: Experiments and Theory - He et al.

• Assessing the effectiveness of using various face coverings to mitigate the transport of airborne particles produced by coughing indoors - Li et al.

Day 5

• Modeling aerosol transmission of SARS-CoV-2 in multi-room facility - Kennedy et al.

Day 3

• Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments - Lelieveld et al.

Day 2

• Face Masks Against COVID-19: An Evidence Review (pre-print) - Howard et al.

Day 30

• Transmission of SARS-COV-2 Infections in Households — Tennessee and Wisconsin, April - Grijalva et al.

• Peripheral Oxygen Saturation in Older Persons Wearing Nonmedical Face Masks in Community Settings - Chan et al.

Day 29

• COVID-19 transmission—up in the air (editorial) - The Lancet

• Facial Masking for Covid-19 — Potential for “Variolation” as We Await a Vaccine - Gandhi and Marr

• Dose-response Relation Deduced for Coronaviruses from COVID-19, SARS and MERS Meta-analysis Results and its Application for Infection Risk Assessment of Aerosol Transmission - Zhang and Wang

• Outdoor Transmission of SARS-CoV-2 and Other Respiratory Viruses: A Systematic Review - Bulfone et al.

Day 27

• Aerosol persistence in relation to possible transmission of SARS-CoV-2 - Smith et al.

Day 26

• Opinion: Preventing the Spread of SARS-CoV-2 With Masks and Other “Low-tech” Interventions - Lerner et al.

• COVID-19—Lessons Learned and Questions Remaining - Fang et al.

Day 22

• The temporal association of introducing and lifting non-pharmaceutical interventions with the time-varying reproduction number (R) of SARS-CoV-2: a modelling study across 131 countries - Li et al.

Day 21

• COVID-19 in a Correctional Facility Employee Following Multiple Brief Exposures to Persons with COVID-19 — Vermont, July–August 2020 - Pringle et al.

• A tool to rapidly simulate the airborne virus exposure in different indoor scenarios - Riediker and Monn

• Effectiveness of Face Masks in Preventing Airborne Transmission of SARS-CoV-2 - Ueki et al

Day 19

• Airborne Viral Emission and Risk Assessment in Enclosed Rooms - Luhar

• SARS-CoV and SARS-CoV-2 are transmitted through the air between ferrets over more than one meter distance - Kutter et al.

Day 16

• The effect of temperature and humidity on the stability of SARS-CoV-2 and other enveloped viruses - Morris et al.

• Airborne transmission of SARS-CoV-2 - Prather et al.

Day 15

• TRANSCOM/AMC Commercial Aircraft Cabin Aerosol Dispersion Tests - DOD study report

• Superspreading Event of SARS-CoV-2 Infection at a Bar, Ho Chi Minh City, Vietnam - Chau et al.

Day 14

• Scientific consensus on the COVID-19 pandemic: we need to act now (aka John Snow memorandum) - Alwan et al.

• A Brief Introduction To Passenger Aircraft Cabin Air Quality - Walkinshaw

Day 13

• List of references related to how well masks work - @thefoodlearner

• Coronavirus masks: What’s the latest evidence? - Kamal Patel

Day 8

• Aerosol filtration efficiency of household materials for homemade face masks: Influence of material properties, particle size, particle electrical charge, face velocity, and leaks - Drewenick et al.

Day 6

• Defining the role of asymptomatic and pre-symptomatic SARS-CoV-2 transmission – a living systematic review - Qiu et al.

Day 5

• The Influence of Temperature, Humidity, and Simulated Sunlight on the Infectivity of SARS-CoV-2 in Aerosols - Dabisch et al.

Day 3

• COVID-19 transmission in the U.S. before vs. after relaxation of statewide social distancing measures - Tsai et al.

• Implementing a negative pressure isolation space within a skilled nursing facility to control SARS-CoV-2 transmission - Miller et al.

Day 2

• Effect of Face Masks on Gas Exchange in Healthy Persons and Patients with COPD - Samannan et al.

• A quantitative evaluation of aerosol generation during tracheal intubation and extubation - Brown et al.

• Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments - Lelieveld et al.

Day 28

• Wrong person, place and time: viral load and contact network structure predict SARS-CoV-2 transmission and super-spreading events - Goyal et al.

Day 24

• Transmission risk of infectious droplets in physical spreading process at different times: A review - Mao et al.

• Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities - Asadi et al.

Day 23

• Super-spreading events initiated the exponential growth phase of COVID-19 with ℛ0 higher than initially estimated - Kochańczyk et al.

Day 18

• Update on How COVID-19 Spreads - CDC

• Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 During Long Flight - Khanh et al.

• In-Flight Transmission of SARS-CoV-2 - Choi et al.

Day 17

• Clustering and superspreading potential of SARS-CoV-2 infections in Hong Kong - Adam et al.

Day 11

• Community and Close Contact Exposures Associated with COVID-19 Among Symptomatic Adults ... - Fisher et al.

• Rubber Dam Isolation and High-Volume Suction Reduce Ultrafine Dental Aerosol Particles: An Experiment in a Simulated Patient - Balanta-Melo et al.

• Distinct regimes of particle and virus abundance explain face mask efficacy for COVID-19 - Cheng et al.

Day 10

• Duality between Coronavirus Transmission and Air-based Macroscopic Molecular Communication - Schurwanz et al.

• Quantifying proximity, confinement, and interventions in disease outbreaks: a decision support framework for air-transported pathogens - Bond et al.

• Exhaled CO2 as COVID-19 infection risk proxy for different indoor environments and activities - Peng and Jimenez

Day 9

• The Impact of Vocalization Loudness on COVID-19 Transmission in Indoor Spaces - Barreda et al.

Day 1

• • Visualizing droplet dispersal for face shields and masks with exhalation valves - Verma et al.

  • Community Outbreak Investigation of SARS-CoV-2 Transmission Among Bus Riders in Eastern China - Shen et al.

  • Probable Evidence of Fecal Aerosol Transmission of SARS-CoV-2 in a High-Rise Building - Kang et al.

Day 28

• COVID-19 patients in earlier stages exhaled millions of SARS-CoV-2 per hour - Ma et al.

Day 27

• Speech can produce jet-like transport relevant to asymptomatic spreading of virus - Abkarian et al.

Day 25

• Two metres or one: what is the evidence for physical distancing in covid-19? - Jones et al. (+ Bourouiba)

Day 24

• Exhaled respiratory particles during singing and talking - Alsved et al.

Day 21

• Asymptomatic Transmission of SARS-CoV-2 on Evacuation Flight - Bae et al.

Day 20

• Comparing the Respirable Aerosol Concentrations and Particle Size Distributions Generated by Singing, Speaking and Breathing - Gregson et al.

• Editorial: Airborne transmission of covid-19 - Wilson, Corbett, Tovey

• Increased Indoor Exposure to Commonly Used Disinfectants during the COVID-19 Pandemic - Zheng et al.

Day 17

• Preliminary results from CSU music study - John Volkens et al.

Day 15

• Review: Chemicals inhaled from spray cleaning and disinfection products and their respiratory effects. A comprehensive review - Clausen et al.

Day 14

• Action Levels for SARS-CoV-2 in Air: A Preliminary Approach - Charles Haas

Day 7

• • Aerosol transmission of SARS-CoV-2? Evidence, prevention and control - Tang et al.

Day 6

• • Extended lifetime of respiratory droplets in a turbulent vapour puff and its implications on airborne disease transmission - Chong et al.

  • Preliminary results (round 2) from CU music study - Shelly Miller et al.

Day 5

• • High Rate of SARS-CoV-2 Transmission due to Choir Practice in France at the Beginning of the COVID-19 Pandemic - Nathalie Charlotte

  • The evidence of indirect transmission of SARS-CoV-2 reported in Guangzhou, China - Xie et al.

Day 4

• • Indoor Air and COVID-19 Key References and Publications - EPA

  • Pre-print: Viable SARS-CoV-2 in the air of a hospital room with COVID-19 patients https://www.sciencedirect.com/science/article/pii/S1201971220307396 - Lednicky et al.

  • Short-range spread of spherical droplets important for coughing and sneezing - Cummons et al.

Day 1

• • Superspreading events: Clusters of Coronavirus Disease in Communities, Japan, January–April 2020 - Furuse et al.

Day 31

• Editorial: COVID-19 and the workplace: Research questions for the aerosol science community - Lindsley et al.

• SARS-CoV-2 Transmission and Infection Among Attendees of an Overnight Camp — Georgia, June 2020 - Szablewski et al. (CDC report)

Day 29

• Aerosol and surface contamination of SARS‑CoV‑2 observed in quarantine and isolation care - Santarpia et al.

Day 28

• An Overview on the Role of Relative Humidity in Airborne Transmission of SARS-CoV-2 in Indoor Environments - Ahlawat et al.

Day 24

• A Rosetta Stone for Understanding Infectious Drops and Aerosols - Milton

• Particle sizes of infectious aerosols: implications for infection control - Fennelly

Day 23

• Preliminary results from fine arts study / music study of aerosol emissions - NFHS

• Investigation of a superspreading event preceding the largest meat processing plant-related SARS-Coronavirus 2 outbreak in Germany - Guenther et al.

Day 21

• The Infectious Nature of Patient-Generated SARS-CoV-2 Aerosol - Santarpia et al.

Day 17

• Absence of Apparent Transmission of SARS-CoV-2 from Two Stylists After Exposure at a Hair Salon with a Universal Face Covering Policy - Hendrix et al.

• Aerosol slides sent to Dr. Fauci for discussion (from Marr + Prather) - Linsey Marr

• Editorial: Integrating IAQ control strategies to reduce the risk of asymptomatic SARS CoV-2 infections in classrooms and open plan offices - Zhang

Day 15

• Work Related and Personal Predictors of Covid 19 transmission - Anand et al.

Day 14

• Association Between Universal Masking in a Health Care System and SARS-CoV-2 Positivity Among Health Care Workers - Wang et al.

Day 13

• Preliminary results (round 1) from CU music study - Shelly Miller et al.

Day 10

• Event-specific interventions to minimize COVID-19 transmission - Tupper et al.

Day 6

• It is Time to Address Airborne Transmission of COVID-19 - Morawska and Milton

• Potential transmission of SARS-CoV-2 on a flight from Singapore to Hangzhou, China: An epidemiological investigation - Chen et al.

Day 3

• Bibliography of COVID-19 articles - Linsey Marr

Day 1

• Work-Related and Personal Predictors of COVID-19 Transmission - Anand et al.

Day 30

• Suppression of a SARS-CoV-2 outbreak in the Italian municipality of Vo’ - Lavezzo et al.

• Many Americans with COVID-19 don't know how they got infected, survey suggests - LiveScience

Day 26

• Reducing transmission of SARS-CoV-2 - Prather, Wang, Schooley

Day 22

• Probability of symptoms and critical disease after SARSCoV-2 infection - Poletti et al. (pre-print?)

• Persistence of Severe Acute Respiratory Syndrome Coronavirus 2 in Aerosol Suspensions - Fears et al.

Day 18

• Transmission of SARS-CoV-2 by inhalation of respiratory aerosol in the Skagit Valley Chorale superspreading event - Miller et al.

Day 16

• Community Use Of Face Masks And COVID-19: Evidence From A Natural Experiment Of State Mandates In The US - Lyu et al.

Day 11

• Modelling aerosol transport and virus exposure with numerical simulations in relation to SARS-CoV-2 transmission by inhalation indoors - Vuorinen et al.

Day 2

• Household Materials Selection for Homemade Cloth Face Coverings and Their Filtration Efficiency Enhancement with Triboelectric Charging - Zhao et al.

• The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission - Stadnytskyi et al.

• Quantitative assessment of the risk of airborne transmission of SARS-CoV-2 infection: prospective and retrospective applications - Buonanno, Morawska, and Stabile

Day 29

• Detection of air and surface contamination by SARS-CoV-2 in hospital rooms of infected patients - Chia et al.

Day 28

• Reduction of secondary transmission of SARS-CoV-2 in households by face mask use, disinfection and social distancing: a cohort study in Beijing, China - Wang et al.

Day 27

• How can airborne transmission of COVID-19 indoors be minimised? - Morawska et al.

Day 18

• Blog entry on dose response - Charles Haas

Day 15

• Nebulisers as a potential source of airborne virus - Tang et al.

Day 14

• Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1 - van Dormalen

Day 12

• High SARS-CoV-2 Attack Rate Following Exposure at a Choir Practice — Skagit County, Washington, March 2020 - Hamner et al. (CDC report)

Day 27

• Aerodynamic analysis of SARS-CoV-2 in two Wuhan hospitals - Liu et al.

Day 23

• Airborne Transmission Route of COVID-19: Why 2 Meters/6 Feet of Inter-Personal Distance Could Not Be Enough - Setti et al.

• Coronavirus Disease Outbreak in Call Center, South Korea - Park et al.

Day 22

• Evidence for probable aerosol transmission of SARS-CoV-2 in a poorly ventilated restaurant - Li et al.

Day 20

• Airborne transmission of severe acute respiratory syndrome coronavirus‐2 to healthcare workers: a narrative review - Wilson et al.

Day 16

• Closed environments facilitate secondary transmission of coronavirus disease 2019 (COVID-19) [outdoors 20x less likely to ransmit] - Nishiura et al.

• Airborne or Droplet Precautions for Health Workers Treating Coronavirus Disease 2019? - Bahl et al.

• Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1 - van Doremalen et al.

Day 10

• Short-range airborne route dominates exposure of respiratory infection during close contact - Chen et al.

Day 3

• Respiratory virus shedding in exhaled breath and efficacy of face masks - Leung et al.

Day 2

• COVID-19 Outbreak Associated with Air Conditioning in Restaurant, Guangzhou, China, 2020 - Lu et al.

Day 19 - February 2020

• Association between 2019-nCoV transmission and N95 respirator use - Wang et al.

Day 3 - February 2020

• A pneumonia outbreak associated with a new coronavirus of probable bat origin - Zhou et al.

Day 27 - January 2020

• Effect of voicing and articulation manner on aerosol particle emission during human speech - Asadi et al.

Day 21 - October 2019

• Personal CO2 cloud: laboratory measurements of metabolic CO2 inhalation zone concentration and dispersion in a typical office desk setting - Pantelic et al.

Day 1 - July 2019

• The on-board carbon dioxide concentrations and ventilation performance in passenger cabins of US domestic flights - Cao et al.

Day 1 - June 2019

• Ventilation Control of Indoor Transmission of Airborne Diseases in an Urban Community - Gao et al.

Day 20 - February 2019

• Aerosol emission and superemission during human speech increase with voice loudness - Asadi et al.

Day 31 - January 2019

• Recognition of aerosol transmission of infectious agents: a commentary - Tellier et al.

Day 23 - April 2018

• Airborne spread of expiratory droplet nuclei between the occupants of indoor environments: A review - AI and Melikov

Day 6 - July 2017

• The ventilation problem in schools: literature review - Fisk

Day 1 - July 2017

• Emission strength of airborne pathogens during toilet flushing - Lai et al.

Day 7 - July 2015

• Large Eddy Simulation of Air Escape through a Hospital Isolation Room Single Hinged Doorway—Validation by Using Tracer Gases and Simulated Smoke Videos - Saarinen et al.

Day 23 - April 2015

• Human body micro-environment: The benefits of controlling airflow interaction [related to face shields] - Melikov

Day 3 - March 2015

• Challenges in developing ventilation and indoor air quality standards: The story of ASHRAE Standard 62 - Persily

Day 1 - July 2014

• A comparison of facemask and respirator filtration test methods - Rengasamy et al.

Day 15 - April 2014

• Use of visual CO2 feedback as a retrofit solution for improving classroom air quality - Wargocki and Da Silva

Day 7 - March 2013

• Influenza Virus Aerosols in Human Exhaled Breath: Particle Size, Culturability, and Effect of Surgical Masks - Milton et al.

Day 3 - October 2012

• Relationship between Humidity and Influenza A Viability in Droplets and Implications for Influenza’s Seasonality - Yang et al.

Day 31 - May 2012

• Quantity and size distribution of cough-generated particles produced by influenza patients during and after illness - Lindsley et al.

Day 27 - December 2011

• The Effect of Opening Windows on Air Change Rates in Two Homes - Howard-Reed et al.

Day 5 - August 2011

• Modality of human expired aerosol size distributions - Johnson et al.

Day 22 - June 2011

• Qualitative Real-Time Schlieren and Shadowgraph Imaging of Human Exhaled Airflows: An Aid to Aerosol Infection Control - Tang et al.

Day 15 - October 2010

• A pilot study of bioaerosol reduction using an air cleaning system during dental procedures - Hallier et al.

Day 16 - September 2009

• The Mechanism of Breath Aerosol Formation - Johnson and Morawska

Day 30 - January 2009

• The Size Distribution of Droplets in the Exhaled Breath of Healthy Human Subjects - Papineni and Rosenthal

Day 18 - November 2008

• Size distribution and sites of origin of droplets expelled during expiratory activities - Morawska et al.

April 2008

• RR619 Evaluating the protection afforded by surgical masks against influenza bioaerosols - UK HSE

Day 14 - September 2006

• How far droplets can move in indoor environments-revisiting the Wells evaporation-falling curve - Xie et al.

Day 22 - April 2004

• Airborne transmission of communicable infection - The elusive pathway - Roy and Milton

Day 28 - December 2002

• Risk of indoor airborne infection transmission estimatedfrom carbon dioxide concentration - Rudnick and Milton

April 2001

• What Nobody Needs to Know About Airborne Infection (opinion) - Riley

Multiple Date

• Indoor Air and COVID-19 Key References and Publications - EPA