“Possible causes of the origin and progress of the outbreak included the pattern of virus excretion from vaccinees, mutations identified in epidemic viruses and the unique vaccination policies in Poland during the years preceding the epidemic.”
Brazil’s Sao Paulo Pushes For Mandatory COVID Vaccinations
In September, Brazil's wealthiest and most populous state Sao Paulo went into contract with Chinese vaccine developer Sinovac Biotech, with the expectations to receive 46 million doses of CoronaVac. CoronaVac has been in Phase 3 testing in the South American country...
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