A Covid-19 vaccine developed by China’s Sinovac Biotech was just 50.38% effective in late-stage trials in Brazil, significantly lower than earlier results showed, according to a statement published by the government of São Paulo Tuesday. “The Butantan Institute and the Government of São Paulo report that the coronavirus vaccine achieved a 50.38% overall efficacy rate in the clinical study conducted …
“Just a little alert to the world: the sky randomly turned dark today in São Paulo, and meteorologists believe it’s smoke from the fires burning *thousands* of kilometers away, in Rondônia or Paraguay. From the other side of Earth, here’s the latest on the Amazonia fires 🌳 Produced by @CopernicusEU’s atmosphere monitoring service, it shows the smoke reaching the Atlantic …
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