Result for
Topic: Non-Pharmaceutical Interventions
May 21, 2020
Differential Effects of Intervention Timing on COVID-19 Spread in the United States
[pre-print, not peer reviewed] Pei et al. estimated that if non-pharmaceutical interventions in the U.S. had been implemented 1-2 weeks earlier, then 62% (95% CI: 55%-68%) of reported COVID-19 infections and 55% (95% CI: 46%-62%) of reported deaths would have been averted. The authors also estimated that longer delays in re-implementing social distancing following a relaxation of…
May 20, 2020
Medical Mask versus Cotton Mask for Preventing Respiratory Droplet Transmission in Micro Environments
Ho et al. compared performance of medical masks and cotton masks in suppressing respiratory droplets from a coughing infectious person. Particles with size ranging 20-1000 nm (NC0.02-1) were measured for each participant while they were in a bedroom and a car wearing a medical mask and 100% cotton mask. There were no significant differences in NC0.02-1 between participants with medical masks and cotton…
May 19, 2020
A Novel Cohorting and Isolation Strategy for Suspected COVID-19 Cases during a Pandemic
Patterson et al. evaluated a clinical triaging tool with four categories based on likelihood of having COVID-19 and risk of having a poor health outcome. Individuals with lowest likelihood of having COVID-19 and highest risk of having a poor outcome were prioritized for single-occupancy rooms while the others groups were “cohorted” by putting them in…
May 15, 2020
Strong Social Distancing Measures In The United States Reduced The COVID-19 Growth Rate
Researchers evaluated the impact of four government-imposed social distancing measures, including public school closures, bans on large social gatherings, closures of entertainment-related businesses, and shelter-in-place orders (SIPOs) on the spread of COVID-19 across US counties. They found that their combined adoption reduced the daily growth rate by 9.1% after 16-20 days of implementation. When considered separately, each measure was associated with a reduction in the daily…
May 14, 2020
YouTube as a Source of Medical Information on the Novel Coronavirus 2019 Disease (COVID-19) Pandemic
D’Souza et al. reviewed the medical content of the 113 most-widely viewed YouTube videos on COVID-19. They found 70% of videos were useful and 9% were misleading. Of the videos classified as useful, 72% were posted by news agencies and 22% were posted by individuals. Of the misleading videos, 60% were posted by individuals and 40% were posted…
Lower State COVID-19 Deaths and Cases with Earlier School Closure in the U.S.
This ecological study found that earlier state-wide school closure was associated with fewer COVID-19 cases and deaths per capita. The authors estimate that state-wide cases were 2.7% higher and deaths were 12% higher for each addition day that schools remained open. Rauscher. (May 13, 2020). Lower State COVID-19 Deaths and Cases with Earlier School Closure…
May 13, 2020
Real-Time Tracking of Self-Reported Symptoms to Predict Potential COVID-19
Menni et al. examine implementation of a smartphone-based app for tracking COVID-19. 2.6 million participants used the app to report their potential symptoms. Among 18,401 who had undergone a SARS-CoV-2 test, the proportion who reported loss of smell and taste was higher in those with a positive result (4,668 of 7,178; 65%) than in those with a negative result…
May 12, 2020
Evaluating the Effectiveness of Social Distancing Interventions to Delay or Flatten the Epidemic Curve of Coronavirus Disease
Using an age-stratified model calibrated to Seattle, Washington in which social distancing interventions reduced contacts for 6 weeks, interventions started earlier in the epidemic were found to delay the epidemic curve, while interventions started later flattened the epidemic curve. Even with only modest reductions in contacts among adults (20-59 years), interventions averted 20% of new cases, and most…
May 11, 2020
Effectiveness of interventions targeting air travellers for delaying local outbreaks of SARS-CoV-2
This study evaluated whether interventions aimed at air travelers can delay local SARS-CoV-2 community transmission in a previously unaffected country. Results from stochastic simulation showed that introducing exit and entry screening for SARS-CoV-2 at departure and/or arrival, in combination with traveler sensitization about COVID-19 symptoms, can delay a local outbreak by 8 days (50% interval: 3-14 days). The additional benefit of entry…
Acceptability of app-based contact tracing for COVID-19: Cross-country survey evidence
This large-scale (N=5,995) online survey investigates user acceptability of a contact-tracing app across different installation scenarios (voluntary installation vs. automatic installation by mobile phone providers) in France, Germany, Italy, the UK and the US. Results show strong support for the app under both installation scenarios, with at least 68% of respondents across countries indicating that they would install the app…
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