BECKHAM
14-04-2021, 10:51 PM
Pfizer and AZ vaccines had reassuring effects on the body's defences in over-80s after one dose.
for more .... (https://www.bbc.co.uk/news/health-56744317)
for more .... (https://www.bbc.co.uk/news/health-56744317)
مشاهدة النسخة كاملة : Covid: 'Encouraging' antibody boost after Pfizer and AZ vaccines