المساعد الشخصي الرقمي

مشاهدة النسخة كاملة : Sinovac: Brazil results show Chinese vaccine 50.4% effective


BECKHAM
13-01-2021, 12:03 PM
Latest results show Sinovac's Covid-19 vaccine is less effective in Brazil than previously suggested.

for more .... (https://www.bbc.co.uk/news/world-latin-america-55642648)