RIO DE JANEIRO, BRAZIL - When São Paulo Governos João Doria vowed to make Sinovac Biotech's coronavirus vaccine candidate mandatory across Brazil's most populous state, his political adversary President Jair Bolsonaro took to social media to say that such a product must be "scientifically proven" before it is distributed to the public.
"The Brazilian people will not be anyone's guinea pigs," Bolsonaro wrote, noting that the Chinese company's candidate has yet to conclude final clinical trials.
Bolsonaro, who is aligned with Washington, looks to procure a vaccine from British developer AstraZeneca, which is collaborating with . . .