International evidence shows many who took it were still infected, said director of medical services Kenneth Mak.
nz.news.yahoo.com
SINGAPORE — There is a significant risk of "vaccine breakthrough" with the Sinovac vaccine, or CoronaVac, with international evidence showing that many who had taken it were later infected with COVID-19, said the Ministry of Health's (MOH) director of medical services Kenneth Mak on Friday (18 June).