SAO PAULO—Brazil’s death toll from COVID-19 surpassed 500,000 on June 19, as the country relies overwhelmingly on a vaccine developed by China’s Sinovac Biotech.
Singapore Director of Medical Services at the Ministry of Health Kenneth Mak said on June 18 that the Sinovac Biotech vaccine presented a significant risk of “vaccine breakthrough.” Mak pointed to international evidence reporting that many who had taken the China-made vaccine later became infected with COVID-19.
