All coverage
Pfizer, BioNTech Boost Vaccine Output Goal by More Than 50%
By Riley Griffin & Naomi Kresge
China's Sinovac vaccine reportedly 50.4% effective in Brazilian trial
By Nee Lee & Yen Nee Lee
Doctor's Death After Getting the Covid-19 Vaccine Is Investigated
By Denise Grady & Patricia Mazzei
COVID vaccine: some waste is normal – but here's how it is being kept to a minimum
By Liz Breen & Sarah Schiffling
Sinovac: Brazil results show Chinese vaccine 50.4% effective
By Philippa Roxby