Covid-19 News Government says Sinovac works, despite claims of lower efficacy against variants Aug 18, 2021
Covid-19 News Pressure mounts for effective boosters as fully vaccinated nurse dies of Covid-19 Jul 12, 2021
Covid-19 News Tests confirm Sinovac, AstraZeneca effective at stimulating immune response May 10, 2021
Covid-19 News Novavax says vaccine 100% effective at preventing severe illness, hospitalisation Mar 12, 2021
Health Efficacy of Covid-19 vaccines will drop during mass inoculations: Thai virologist Dec 22, 2023