Eric Feigl-Ding @DrEricDing - The most important vaccine in Latin America—SinoVac’s CoronaVac reports new trial results from Brazil Flag of Brazil— Efficacy against symptomatic #COVID19–50.7%. Moderate & severe: 83.7% / 100%. Delayed 2nd dose no issue. Neut. titres lower in age>=60 against #P1. Thread https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3822780 https://pbs.twimg.com/media/Eyvg4XZWEAEyWfD?format=jpg&name=small https://twitter.com/DrEricDing/status/1381444974143795200