That may have as much to do with the strain there
Post# of 151793
Quote:
Researchers in Brazil have reported that CoronaVac produced by Sinovac in China .......apparently 50.6 % effective at preventing Severe and Mild COVID-19 in late-stage trials.
Read More: https://investorshangout.com/post/newpost/605...z6jeDua7GQ

