Many countries across the globe utilized medical and non-medical facemasks as non-pharmaceutical intervention for reducing the transmission and infectivity of coronavirus disease-2019 (COVID-19). Although, scientific evidence supporting facemasks’ efficacy is lacking, adverse physiological, psychological and health effects are established. Is has been hypothesized that facemasks have compromised safety and efficacy profile and should be avoided from use. The current article comprehensively summarizes scientific evidences with respect to wearing facemasks in the COVID-19 era, providing proper information for public health and decisions making.
The case fatality rate of Covid-19:
“Given the fact that asymptomatic
or minimally symptomatic cases is several times higher than the number of
reported cases, the case fatality rate is considerably less than 1% [5]. This
was confirmed by the head of National Institute of Allergy and Infectious
Diseases from US stating, “the overall clinical consequences of COVID-19 are
similar to those of severe seasonal influenza” [5], having a case fatality rate
of approximately 0.1% [5], [6], [7], [8]. In addition, data from hospitalized
patients with COVID-19 and general public indicate that the majority of deaths
were among older and chronically ill individuals…”
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