WASHINGTON — A former Pfizer scientist was subpoenaed Monday by House Republicans over allegations that senior executives at the pharma giant colluded to “deliberately slow down” clinical tests of its ...

Pfizer will test its COVID-19 vaccine in a larger group of children between 6 months and 12 years old after choosing a lower dose than it administered in an earlier stage of the trial, The New York ...

NEW YORK - Pfizer has started testing a booster shot of its COVID-19 vaccine in combination with a pneumococcal vaccine candidate, the company announced this week. The company has enrolled 600 fully ...

Drug maker Pfizer says it's planning to start testing its COVID-19 vaccine on children as young as 12. This will be the first coronavirus vaccine trial to include children in the United States. The ...