ahlam1399
06-01-2020, 12:44 PM
BEIJING: The researchers wanted to know what factors might heighten or lessen the risk of subsequently catching the virus within the incubation period--14 days from the start of that person's symptoms.Chinese researchers have suggested that wearing face masks at home is 79 per cent effective at...http://feeds.feedburner.com/~r/com/cwEr/~4/mQrY3nMJpeI
أكثر... (http://feedproxy.google.com/~r/com/cwEr/~3/mQrY3nMJpeI/666266-wearing-face-masks-at-home-can-reduce-covid-19-spread-by-79pc-study)
أكثر... (http://feedproxy.google.com/~r/com/cwEr/~3/mQrY3nMJpeI/666266-wearing-face-masks-at-home-can-reduce-covid-19-spread-by-79pc-study)