Covid-19: Brazilians to participate in Chinese vaccine trial

RIO DE JANEIRO: The Sao Paulo state government announced Thursday that Brazil's Instituto Butantan reached an agreement with the Chinese laboratory Sinovac Biotech to produce an experimental vaccine against the coronavirus. Some 9,000 Brazilians will participate in tests beginning in July, representing the third and last stage of testing before distribution. If the vaccine is effective, it will be produced in Brazil. Sao Paulo governor Joao Doria said the vaccine could be available...