“All patients were vaccinated against pertussis, suggesting that pertussis vaccination is ineffective against B. parapertussis.”
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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