Result for
Topic: Non-Pharmaceutical Interventions
March 16, 2021
Early Public Adherence with and Support for Stay-at-Home COVID-19 Mitigation Strategies despite Adverse Life Impact: A Transnational Cross-Sectional Survey Study in the United States and Australia
Self-reported adherence to COVID-19 mitigation policies was high in both highly- and minimally-affected regions in the US around the time of the first wave in April 2020, according to representative cross-sectional surveys (n=5,573) administered to adults residing in throughout the US, in New York City and Los Angeles, and Australia. 82% reported adherence to recommended…
March 15, 2021
Day Camp in the Time of COVID-19: What Went Right?
[Pre-print, not peer-reviewed] A survey of summer day camp directors (n = 23) in the metropolitan New York area conducted in September 2020 regarding their camps’ COVID-19 policies during the summer of 2020 found that common infection prevention policies included COVID-19 screening at entry, placing camp attendees in cohorts, maximizing outdoor activities, mandating mask use…
March 12, 2021
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
Increasing physical distancing requirements in schools from ≥3 feet to ≥6 feet was not associated with a reduction in SARS-CoV-2 cases among students or staff if other mitigation measures were implemented, based on a retrospective cohort study of students (n=537,336) and staff (n=99,390) among 251 school districts with any in-person learning in Massachusetts during the…
Assessment of Use and Fit of Face Masks Among Individuals in Public During the COVID-19 Pandemic in China
Sealing facemasks with adhesive tape strips improved the proportion of masks that had an airtight fit among mask users (n=6,003), based on a study conducted in Beijing, Yunnan, Shanxi and Jiangsu provinces (China). Participants were convenience sampled at public locations and administered a qualitative fit test to ensure proper fit and airtightness. The first qualitative…
March 11, 2021
COVID-19 Case Investigation and Contact Tracing in Central Washington State, June–July 2020
68% of individuals contacted by public health departments reported having “no close contacts” (with anyone), according to an evaluation of case investigations and contact tracing (CICT) in 3 health districts in central Washington State. The study included the results of interviews with individuals with COVID-19 (n = 3,572). A total of 968 individuals with COVID-19…
March 10, 2021
COVID-19-Associated School Closures and Related Efforts to Sustain Education and Subsidized Meal Programs United States February 18-June 30 2020
[Pre-print, not peer-reviewed] A study using daily media searches to identify publicly announced COVID-19–related school closures lasting ≥1 day in the United States, and statewide school closure policies from state government websites, found that the vast majority of the 600 districts sampled in the study offered distance learning (91%) and continued provision of subsidized meal…
March 8, 2021
On Secondary Atomization and Blockage of Surrogate Cough Droplets in Single- and Multilayer Face Masks
Using high-speed imaging and physics-based analyses, large (> 250 μm) simulated cough droplets were shown to penetrate single- or double-layer mask materials to a significant extent. The authors suggest that expelled droplets may atomize into smaller (< 100 μm) droplets that could remain airborne for longer periods, potentially impacting mask efficacy. For a droplet of…
March 5, 2021
Association of State-Issued Mask Mandates and Allowing On-Premises Restaurant Dining with County-Level COVID-19 Case and Death Growth Rates — United States, March 1–December 31, 2020
A comparison of US county-level data on mask mandates and restaurant re-openings in relation to county-level changes in COVID-19 case and death growth rates across the country (n=3,142 counties) between March-December 2020 found mask mandates were associated with decreases in daily COVID-19 case and death growth rates in all intervals from 1-20 to 81-100 days…
March 4, 2021
Impacts of Introducing and Lifting Nonpharmaceutical Interventions on COVID-19 Daily Growth Rate and Compliance in the United State
Implementation of nonpharmaceutical interventions (NPIs), measured as the percentage of electronic devices staying at home, led to a reduction in COVID-19 cases among US counties. Implementing one NPI was associated with a reduction of the daily COVID-19 growth rate by 176 cases per 100,000, with a stronger reduction in counties with a higher proportion of…
March 3, 2021
Assessment of a Hotel-Based COVID-19 Isolation and Quarantine Strategy for Persons Experiencing Homelessness
Among people who were referred to isolation and quarantine (I/Q) hotels in San Francisco from hospitals, outpatient settings, and public health surveillance, 81% completed their recommended I/Q course. The retrospective cohort study found that of the 1,009 I/Q hotel guests, 501 (50%) were persons experiencing sheltered (n=295) or unsheltered (n=206) homelessness, 33% had other medical…
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