Studies confirm waning immunity from Pfizer's Covid-19 vaccine

Two real-world studies published Wednesday confirm that the immune protection offered by two doses of Pfizer's Covid-19 vaccine drops off after two months or so, although protection against severe disease, hospitalization and death remains strong.

from CNN.com - RSS Channel - App International Edition https://www.cnn.com/2021/10/06/health/pfizer-vaccine-waning-immunity/index.html
via IFTTT