Result for
Topic: Non-Pharmaceutical Interventions
February 10, 2021
Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021
The CDC found that fitting a cloth mask over a medical procedure mask (double masking), and knotting the ear loops of a medical procedure mask, then tucking in and flattening the extra material near the face substantially improves the efficacy of masks. In simulated coughing experiments, the unknotted medical procedure mask blocked 42% of the…
February 8, 2021
The Impact of State Mask-Wearing Requirements on the Growth of COVID-19 Cases in the United States
An ecological study conducted from January-October 2020 found differences in median COVID-19 case rates (per 100,000) between states who adopted mask requirements “early” (before June 12, 15 states, rate = 5.7), “late” (after June 12, 19 states, rate = 5.59) or “never” (17 states, rate = 5.99). Models that controlled for confounders and interactions between…
February 5, 2021
Risk compensation and face mask mandates during the COVID-19 pandemic
Implementation of face mask mandates may lead to people participating in higher risk activities. Using SafeGraph smart device location data and variation in the date that US states and counties issued face mask mandates, a comparison of time at home and the number of visits to public locations before and after face mask orders suggests…
Decline in COVID-19 Hospitalization Growth Rates Associated with Statewide Mask Mandates — 10 States, March–October 2020
Hospitals in states with statewide mask mandates reported a decline in weekly COVID-19–associated hospitalization growth rates by up to 5.5 percentage points for adults aged 18–64 years after mandate implementation, compared with growth rates during the 4 weeks preceding implementation of the mandate. Data were collected during March 22–October 17, 2020 in 10 sites participating…
Observed Face Mask Use at Six Universities — United States, September–November 2020
Among persons observed indoors in public settings at six universities with mask mandates, 92% wore masks correctly, according a study conducted during September–November 2020. Correct usage varied by mask type, with 97% for N95-type masks, 92% for cloth masks and 79% for bandanas, scarves, and similar face coverings. Barrios et al. (Feb 5, 2021). Observed…
February 3, 2021
Limited Benefit of Facility Isolation and the Rationale for Home Care in Children with Mild COVID-19
A study conducted in South Korea of 53 children with COVID-19 found that the risk of virus transmission to their caregivers was low, with no caregivers (n=15) in the study becoming ill when they used facemasks and practiced hand hygiene in an isolation unit. COVID-19 policies in South Korea require infected individuals to be admitted…
February 2, 2021
Promoting Mask Use on TikTok: A Descriptive Study on Unconventional Approach to Public Health Education
Videos promoting mask use posted on the social media platform TikTok with the hashtag #WearAMask (n=100) received almost 10 times as many cumulative views as videos by the World Health Organization (WHO) to promote mask use (n=32). Most of the #WearAMask videos used humor and dance to garner almost 500 million views. In contrast, the…
January 29, 2021
Response to a COVID-19 Outbreak on a University Campus — Indiana, August 2020
After an outbreak of 371 cases of COVID-19 on an Indiana university campus, the university was able to rapidly decrease new cases and gradually return to in-person learning by implementing aggressive transmission mitigation policies. These included aggressive testing, tracing, and isolation program, switching to online instruction for 2 weeks, mandating masks and physical distancing, developing…
January 26, 2021
SARS-CoV-2 Transmission Associated with High School Wrestling Tournaments — Florida, December 2020–January 2021
An outbreak arising from a Florida high school wrestling tournament in December 2020 had an attack rate of at least 30% (38 of 126 tournament attendees who were tested) and a secondary attack rate of at least 9% (41 of 441 close contacts of the 38 COVID-19 patients). Among contacts, household members had the highest…
SARS-CoV-2 Control on a Large Urban College Campus Without Mass Testing
[Pre-print, not peer-reviewed] Testing of symptomatic students combined with a random subset of asymptomatic students at the University of Pittsburgh demonstrated a prevalence SARS-CoV-2 infection of 0.4% and a case rate of 232 per 10,000 students, comparable to the case rates of other public urban institutions that implemented mass-testing. The authors suggest that targeted testing,…
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