Pfizer: COVID-19 vaccine still effective six months after shots

Months into the COVID-19 immunization rollout, new data from Pfizer suggests its vaccine has been 100-percent effective in preventing severe cases of coronavirus, with the effects of the drug lasting for more than six months. The new study built on Pfizer-BioNTech’s original immunization research, following participants who had been injected with BNT162b2 to see who had gone on to catch … Continue reading