Pfizer Begins Tests to Determine Effectiveness of COVID-19 Booster

Pfizer Begins Tests to Determine Effectiveness of COVID-19 Booster

Pfizer Begins Tests to Determine Effectiveness of COVID-19 Booster

Drug maker Pfizer has begun trials to test the effectiveness of a third, or booster, dose of its vaccine against the SARS-CoV-2 virus that causes COVID-19 and its variants, the company has announced. The study will use participants from the pharmaceutical firm’s Phase 1…
Pfizer Begins Tests to Determine Effectiveness of COVID-19 Booster