Clinical trials in Brazil of a Chinese-made vaccine against Covid-19 have shown “extremely positive” results, and a widespread vaccination campaign could begin as early as December, the governor of Sao Paulo state said on Wednesday.
Sao Paulo, the epicentre of the coronavirus pandemic in hard-hit Brazil, is one of six states helping to test the so-called CoronaVac vaccine developed by Chinese pharmaceutical firm Sinovac Biotech.
The vaccine produced an immune response in 98 per cent of recipients over 60 years old, with no adverse side-effects reported so far, said Governor Joao Doria.
“The results have been extremely positive,” he told a news conference. “We will soon be able to immunise Brazilians in Sao Paulo and across the country with the CoronaVac vaccine … The projected delivery date is in December this year.”
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