Result for
Topic: Non-Pharmaceutical Interventions
October 6, 2020
Testing Mobile Air Purifiers in a School Classroom Reducing the Airborne Transmission Risk for SARS-CoV-2
[Pre-print, not peer reviewed] Four mobile air purifiers with HEPA filters in a regular high school classroom were able to reduce the concentration of aerosols by more than 90% within less than 30 minutes compared to a neighboring classroom without purifiers. The authors further estimate that the inhaled dose via airborne transmission from staying in…
Trends in COVID-19 Incidence After Implementation of Mitigation Measures — Arizona, January 22–August 7, 2020
COVID-19 incidence decreased following implementation of mitigation measures in Arizona. Prior to these measures, the average number of daily cases increased approximately 151% from June 1 to June 15, after which local officials enacted mitigation measures that included mask wearing (June 17), closures of bars, gyms, movie theaters, and water parks (June 29), and limiting…
October 1, 2020
The Emotional Path to Action: Empathy Promotes Physical Distancing and Wearing of Face Masks During the COVID-19 Pandemic
The emotion of empathy was linked to physical distancing and wearing face masks during the COVID-19 pandemic among participants in the US, UK, and Germany. In June 2020, 1526 participants were randomized to (1) read an informative text about coronavirus [information only]; (2) read informative text about an immunocompromised woman with COVID-19 [information and empathy];…
September 29, 2020
Strong Impact of Closing Schools Closing Bars and Wearing Masks during the Covid-19 Pandemic Results from a Simple and Revealing Analysis
[Pre-print, not peer-reviewed] Segmented regression applied to COVID-19 and SARS-CoV-2 case counts in a number of US states was used to estimate the impact of the closures of schools, restaurants and bars, general lockdown orders, and masking mandates. The authors estimate that school closings reduced SARS-CoV-2 infection rates by half, while lockdowns reduced transmission rates…
September 25, 2020
Efficacy of masks and face coverings in controlling outward aerosol particle emission from expiratory activities
Surgical masks and unvented KN95 respirators reduce outward particle emissions by 90% during speaking and 74% during coughing, compared to wearing no mask. These masks decreased the outward particle emission of a coughing superemitter who produced up to two orders more expiratory particles than average. Due to experimental confounding, the study was not able to…
September 22, 2020
Comparison of COVID-19 Outcomes among Shielded and Non-Shielded Populations A General Population Cohort Study of 1.3 Million
• [Pre-print, not peer-reviewed] Despite recommendations for people in the UK who were at high-risk of severe COVID-19 to shield themselves (extended self-isolation) this group experiences considerably higher COVID-19 mortality than lower risk individuals. 2.5% of the 1.3 million people included in the population study had been advised to shield, but were found to be…
September 21, 2020
Political Partisanship and Mobility Restriction during the COVID-19 Pandemic
Anonymous mobile phone data showed that between March 30 and April 9, 2020, all states in the US experienced a 34%-69% decline in personal mobility. There was a statistically significant negative correlation (r = -0.79) between the proportion of Republicans/leaning Republicans and adherence to non-pharmaceutical interventions, adjusting for urbanization, proportion of essential workers, population, Gini index,…
Business Closures, Stay-at-Home Restrictions, and COVID-19 Testing Outcomes in New York City
The closure of nonessential businesses and out-of-home activity restrictions implemented on March 22, 2020 in New York city decreased the positivity rate of tests for SARS-CoV-2 by 25% (54% in early April to 14% in early May). Using data on SARS-CoV-2 testing at the zip code level and smart phone location data, Borjas reported that…
September 17, 2020
Association of Daily Wear of Eyeglasses With Susceptibility to Coronavirus Disease 2019 Infection
Eyeglass wearers were underrepresented among COVID-19 patients, providing some evidence that eyeglasses could provide some protection against SARS-CoV-2 infection. A cohort study of COVID-19 patients conducted in Suizhou, China found that 6% of patients wore eyeglasses for extended periods. In comparison, a previous study estimated that 32% of the general population wore glasses. Zeng et…
Case-Control Study of Use of Personal Protective Measures and Risk for Severe Acute Respiratory Syndrome Coronavirus 2 Infection, Thailand. Emerging Infectious Diseases
Wearing a facemask at all times when in contact with someone with COVID-19 was associated with a significantly lower risk of SARS-CoV-2 infection (aOR=0.23) among close contacts of people with COVID-19 in Thailand. The case-control study (211 cases and 839 controls) also found that maintaining physical distance (aOR=0.15), shorter duration of contact (aOR=0.24), and handwashing…
Previous page Next page