Sinovac: Brazil results show Chinese vaccine 50.4% effective
Latest results show Sinovac's Covid-19 vaccine is less effective than previous data suggested.
from BBC News - World https://ift.tt/38EmiSp
https://ift.tt/38EmiSp
from BBC News - World https://ift.tt/38EmiSp
https://ift.tt/38EmiSp
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