Sinovac regimen gets strong boost from Pfizer, AstraZeneca or J&J COVID shots - Study
The study found that CoronaVac received the strongest boost from a viral vector or RNA shot.
Tue Jan 25 2022
Oxford COVID vaccine produces strong immune response from booster shot - Study
Researchers say a third shot of the Oxford-AstraZeneca COVID-19 vaccine produces a strong immune response.
Tue Jun 29 2021
What you need to know about the coronavirus right now
AstraZeneca vaccine shows promise in elderly.
Thu Nov 19 2020