LONDON, OCTOBER 1 (IANS): Two doses of the Pfizer coronavirus vaccine can potentially protect children from thousands of cases of long Covid, suggests a new study.
The US Food and Drug Administration (FDA) h
Washington, September 6 (PTI): COVID-19 antibodies produced by the Pfizer vaccine decreased more than 80 per cent in senior nursing home residents and their caregivers six months after receiving their second do