Coronavirus: Hong Kong researchers give third Covid-19 jabs to fully inoculated Sinovac recipients with low antibody levels


A study of 160 people double vaccinated with the Sinovac jab has found that half of them had low antibody levels a month after their second shot. Photo: Shutterstock


A study of 160 people double vaccinated with the Sinovac jab has found that half of them had low antibody levels a month after their second shot. Photo: Shutterstock