Research Results: Double Masking During the COVID-19 Pandemic

Environmental Protection Agency - Center for Environmental Solutions and Emergency Response (CESER)

Research Alert

EPA, along with their co-authors at UNC, recently published an article titled “Fitted Filtration Efficiency of Double Masking During the COVID-19 Pandemic” in JAMA Internal Medicine. With global vaccination efforts against SARS-CoV-2 rapidly increasing, public health officials have continued to encourage the use of face masks to mitigate virus transmission. The article addresses the limitations of a previous study done by US Centers for Disease Control and Prevention (CDC), which reported that wearing two masks increased the effectiveness of preventing spread of COVID-19. This study considers the limitations of the CDC’s research on type and combinations of different masks as well as the CDC’s use of head forms rather than humans. This study compared the fitted filtration efficiency (FFE) of the most widely available masks worn singly, doubled, or in combinations.

Results demonstrated that the most significant improvement to FFE occurred from the combination of a medical procedure mask worn underneath a cloth mask, out of all combinations considered.

Read more: Evaluating the Effectiveness of Facial Coverings and Masks

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Embargo will expire: 20-May-2021 10:00 AM EDT Released to reporters: 14-May-2021 2:40 PM EDT

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Released: 14-May-2021 11:25 AM EDT
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Beth Israel Lahey Health

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Released: 14-May-2021 11:00 AM EDT
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Michigan Medicine - University of Michigan

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Released: 13-May-2021 7:05 PM EDT
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Front Line COVID-19 Critical Care Alliance (FLCCC Alliance)

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Released: 13-May-2021 12:55 PM EDT
Kreuter receives $1.9 million in grants to increase vaccinations in St. Louis
Washington University in St. Louis

Matthew Kreuter, the Kahn Family Professor of Public Health at the Brown School, has received $1.9 million in grants to help increase COVID-19 vaccinations among Blacks in St. Louis City and County.

Released: 13-May-2021 11:35 AM EDT
COVID-19 mRNA Vaccines are Immunogenic in Pregnant and Lactating Women, Including Against Viral Variants
Beth Israel Deaconess Medical Center

In a new study from Beth Israel Deaconess Medical Center researchers evaluated the immunogenicity of COVID-19 mRNA vaccines in pregnant and lactating women who received either the Pfizer or Moderna COVID-19 vaccines. They found that both vaccines triggered immune responses in pregnant and lactating women.

Released: 13-May-2021 10:30 AM EDT
Pandemic stigma: Foreigners, doctors wrongly targeted for COVID-19 spread in India
Monash University

The Indian public blamed foreigners, minority groups and doctors for the rapid spread of COVID-19 across the country during the first wave, due to misinformation, rumour and long-held discriminatory beliefs, according to an international study led by Monash University.

Released: 13-May-2021 9:15 AM EDT
28 Community Programs Receive Grants Through Penn Medicine CAREs Program
Perelman School of Medicine at the University of Pennsylvania

Penn Medicine CAREs awarded grants to 28 projects, many of which aim to fill vast needs in the community created by the COVID-19 pandemic, while others seek to improve diversity, equity, and inclusion.


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