Tweet from EricTopol at March 23, 2022 at 08:13AM
New data from Hong Kong on Coronavac and Pfizer vaccines implicates lack of vaccination and boosters in people of advanced age, not type of vaccine, for extreme fatality rates.
2 doses: Coronavac less protective than Pfizer
3 doses: equivalent VE
— Eric Topol (@EricTopol)
Mar 23, 2022