2020
DOI: 10.2807/1560-7917.es.2020.25.49.2001998
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Face masks and COVID-19: don’t let perfect be the enemy of good

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Cited by 17 publications
(12 citation statements)
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“…Mask interventions were also implemented unevenly (as advisories or mandates) and usually only in limited settings. Our separate evidence review [42] found that mask wearing to stop respiratory disease transmission is likely to be only modestly effective, but we agree that when it comes to a pandemic situation, small protective measures may have cumulative important benefits [43]. We relied on published and observed data which may have suffered from problems of under-ascertainment; the true effect of specific interventions may depend on true community prevalence that was not measured accurately enough.…”
Section: Discussionmentioning
confidence: 99%
“…Mask interventions were also implemented unevenly (as advisories or mandates) and usually only in limited settings. Our separate evidence review [42] found that mask wearing to stop respiratory disease transmission is likely to be only modestly effective, but we agree that when it comes to a pandemic situation, small protective measures may have cumulative important benefits [43]. We relied on published and observed data which may have suffered from problems of under-ascertainment; the true effect of specific interventions may depend on true community prevalence that was not measured accurately enough.…”
Section: Discussionmentioning
confidence: 99%
“…Our estimate of a relative susceptibility of 0.88 (CrI: 0.81-0.96) in vaccinated students, which translates into a vaccine effectiveness of 12% (CrI: 9-19%), is broadly consistent with this prior estimate. While existing evidence for the effectiveness of mask policies for the control of respiratory infections is still limited (44,45), our estimates of small protective effects acting on the relative susceptibility (0.77; CrI: 0.71-0.85) and infectiousness (0.65; CrI: 0.55-0.78) lie within a plausible range based on evidence available to date (44,(46)(47)(48). Increased susceptibility associated with hand washing in our analysis, however, does not align with existing findings (49,50).…”
Section: Discussionmentioning
confidence: 99%
“…Since the beginning of the 2020 pandemic, there has been discussion on the efficacy of face coverings and masks. However, recent studies show clear benefits in reducing transmission [ 1 , 2 , 3 , 4 ], and the use of face coverings has been accepted by the wider scientific community. In one study, [ 5 ], two hairdressers both tested positive for COVID-19 and wore a double layer face mask while working.…”
Section: Introductionmentioning
confidence: 99%