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sur Les masques faciaux sont-ils efficaces ? La preuve


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William 8 février 2021 13:44

Références et extraits :

https://www.who.int/news-room/q-a-detail/coronavirus-disease-covid-19-how-is-it-transmitted (OMS)
Current evidence suggests that the main way (principal vecteur) the virus spreads is by respiratory droplets (gouttelettes respiratoires)

among people who are in close contact with each other...

Aerosol transmission can occur in specific settings, particularly in indoor, crowded and inadequately ventilated spaces...

...people may become infected by touching (manuel) these contaminated surfaces, then touching their eyes, noses or mouths without having cleaned their hands first.

https://www.gov.uk/government/publications/wuhan-novel-coronavirus-background-information/wuhan-novel-coronavirus-epidemiology-virology-and-clinical-features
"SARS-CoV-2 is primarily transmitted between people through respiratory (droplet (goutelettes) and aerosol) and contact routes. Transmission risk is highest where people are in close proximity (within 2 metres)"

https://www.ecdc.europa.eu/en/covid-19/latest-evidence/transmission
the human coronaviruses primary transmission mode is person-to-person contact through respiratory droplets (gouttelettes respiratoires) generated by breathing, sneezing, coughing, etc., as well as contact (direct contact with an infected subject or indirect contact, through hand-mediated transfer (manuporté) of the virus from contaminated fomites to the mouth, nose, or eyes). Infection is understood to be mainly transmitted via large respiratory droplets containing the SARS-CoV-2 virus. Transmission through aerosols has also been implicated but the relative role of large droplets and aerosols is still unclear.

alors oui, ce sont des sites « officiels », mais ils synthétisent l’« état des connaissances »


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