لبس الكمامة الصحيح. كوفيد

Community use of face masks and COVID-19: Evidence from a natural experiment of state mandates in the US Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: An observational study
Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure, 2021 Centers for Disease Control and Prevention

كوفيد

N95 respirators and surgical masks face masks.

23
كوفيد
Improve how your mask protects you
كوفيد
Centers for Disease Control and Prevention
كيفية لبس الكمامة الطبية وأهميتها وأنواعها وأوقات استخدامها للوقاية من الأمراض
Impact assessment of non-pharmaceutical interventions against coronavirus disease 2019 and influenza in Hong Kong: An observational study
Covid-19: What is the evidence for cloth masks? Transmission of SARS-CoV-2: Implications for infection prevention precautions Coronavirus disease 2019 COVID-19 : Epidemiology, virology, and prevention
Proceedings of the National Academy of Sciences Face masks for the public during the covid-19 crisis

ما مدى الحماية التي توفرها الكمامات ضد فيروس كورونا؟

Morbitity and Mortality Weekly Report.

10
كوفيد
Face masks for the public during the covid-19 crisis
كوفيد
Rational use of face masks in the COVID-19 pandemic
ما مدى الحماية التي توفرها الكمامات ضد فيروس كورونا؟
Forgotten technology in the COVID-19 pandemic: Filtration properties of cloth and cloth masks