CBS4's Hank Tester reports on how Pfizer confirmed this week that an ongoing Phase 3 clinical trial of its coronavirus vaccine remains highly effective for at least six months after the second dose.
CBS4's Hank Tester reports on how Pfizer confirmed this week that an ongoing Phase 3 clinical trial of its coronavirus vaccine remains highly effective for at least six months after the second dose.
Pfizer has revealed six-month follow-up data from their covid vaccine trial. They confirmed protection from their vaccine lasts for..
Pfizer and BioNTech announced Thursday that their COVID-19 vaccine was 91.3% effective at protecting against symptomatic disease up..