Brazil, a major buyer of China’s CoronaVac shot and a poster child for Beijing’s efforts at vaccine diplomacy, is making a speedy retreat from the Covid-19 vaccine as concerns grow over its efficacy against the Delta variant and other vaccines become more readily available.
Brazil’s federal government has halted negotiations over extra doses of Sinovac’s vaccine, CoronaVac, spokespeople for the government and its local producer, the Butantan Institute, told The Wall Street Journal. The government has also said it won’t recommend the use of CoronaVac for a third booster shot.