No matter how old you are, two shots of Pfizer vaccine don’t last – study
People’s ages had no effect on the vaccine’s waning, meaning that the vaccine waned for everyone and not just older people.
A healthcare worker hands over doses of the Pfizer-BioNTech COVID-19 vaccine to a doctor at Messe Wien Congress Center, which has been set up as coronavirus disease vaccination centre, in Vienna, Austria February 7, 2021.(photo credit: REUTERS/LISI NIESNER/FILE PHOTO)ByMAAYAN JAFFE-HOFFMANUpdated:
