Result for
Topic: Non-Pharmaceutical Interventions
January 26, 2021
Numbers of Close Contacts of Individuals Infected with SARS-CoV-2 and Their Association with Government Intervention Strategies
[Pre-print, not peer-reviewed] Analysis of more than 140,000 contacts of over 40,000 SARS-CoV-2 positive cases in Ireland from May to December 2020 showed that the number of contacts per case varied across specific populations and trended with implementation of government interventions. The number of contacts per case was highest among those aged 18-24 years and…
COVID-19 Cases and Transmission in 17 K–12 Schools — Wood County, Wisconsin, August 31–November 29, 2020
Despite widespread community transmission, limited COVID-19 spread was observed from August to November 2020 in 17 rural K-12 schools in Wood County, Wisconsin that reopened with in-person instruction and several infection mitigation measures. Schools implemented physical distancing among students and staff, established groups of 11-20 students, and had a 92% reported mask adherence among students….
January 25, 2021
Change in Reported Adherence to Nonpharmaceutical Interventions During the COVID-19 Pandemic, April-November 2020
An analysis of the Coronavirus Tracking Survey completed between April 1 and November 24, 2020 found that the adherence index (range 0 [low] to 100 [high]) to non-pharmaceutical interventions decreased substantially from 70 in April to the high 50’s in June, before rising back to 60 by late November. All US Census regions experienced significant…
January 21, 2021
The Association of COVID-19 Incidence with Sport and Face Mask Use in United States High School Athletes
[pre-print, not peer reviewed] A nationwide survey of 152,484 high school athletes found cumulative incidence of 1,682 COVID-19 cases per 100,000 athletes, corresponding to an incidence rate of 24.6 cases per 100,000 player-days between August and October 2020. Incidence was lower when sports were outdoors and non-contact but no differences were detected between team versus…
Estimating the Effects of Non-Pharmaceutical Interventions on the Number of New Infections with COVID-19 during the First Epidemic Wave
[pre-print, not peer reviewed] Using a Bayesian model and data from the first epidemic wave of 20 countries (including the US) to examine the effectiveness of non-pharmaceutical interventions, event bans (canceling mass gatherings of >50 people) were associated with the highest reduction in the number of new SARS-CoV-2 infections. Event bans reduced new infections by…
January 19, 2021
Reopening Schools and the Dynamics of SARS-CoV-2 Infections in Israel: A Nationwide Study
Nationwide weekly incidence of SARS-CoV-2 infections in Israel gradually increased after school reopening in May 2020, and positivity rates 21-27 days following school reopening increased at least 3-fold among adults ≥20 years, but did not increase for children <20 years old. No increase was observed in COVID-19 associated hospitalizations and deaths following school reopening. However,…
January 15, 2021
COVID-19: Performance Study of Microplastic Inhalation Risk Posed by Wearing Masks
A comparison of seven commercially available masks with a vacuum pump suggested that N95 respirators allow the fewest microplastics from the ambient air and from the mask to pass through the mask. The other types of masks, including surgical, cotton, non-woven, and activated carbon masks, reduced microplastic simulated inhalation risk through four hours of wear,…
January 14, 2021
Comprehensive Characterization of Protective Face Coverings Made from Household Fabrics
A comparison of 21 different face coverings made from household materials found that 1000-thread-count cotton had a filtration efficiency of at least 40% for sub-micron aerosols while offering comparable breathing resistance to N95 respirators, providing some level of protection for the wearer. In contrast, most single-layered materials had filtration efficiencies of <20%, offering little protection….
January 12, 2021
Mitigation Policies and COVID-19–Associated Mortality — 37 European Countries, January 23–June 30, 2020
European countries that implemented stricter mitigation policies during the beginning of the pandemic tended to report fewer COVID-19 deaths through the end of June 2020, according to data from 37 European countries. Using the Oxford Stringency Index (OSI) to measure the stringency of policies (higher number corresponds to stricter policies), a 1-unit increase in the…
January 11, 2021
Time from Start of Quarantine to SARS-CoV-2 Positive Test Among Quarantined College and University Athletes — 17 States, June–October 2020
An analysis conducted by CDC with the National Collegiate Athletic Association found that among collegiate athletes exposed to COVID-19 (n=1,830), one quarter had positive test results during quarantine with a mean of 3.8 days from quarantine start until the positive test result. Among athletes who had not received a positive test result by day 5,…
Previous page Next page