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 ...

(AP) – A real-world test of Pfizer’s COVID-19 vaccine in more than half a million people confirms that it’s very effective at preventing serious illness or death, even after one dose. Wednesday’s ...

The drugmakers that developed the first COVID-19 vaccines hope to save Americans from an extra trip to the pharmacy with a single shot that targets both COVID and the flu. Pfizer and BioNTech announed ...

Dozens of Americans are rolling up their sleeves for a third dose of COVID-19 vaccine-- this time, shots tweaked to guard against a worrisome mutated version of the virus. “We need to be ahead of the ...

NEW YORK — Pfizer has started testing its potential COVID-19 treatment as a preventive medicine aimed at warding off the virus if a close contact gets it. The drugmaker said Monday that it will study ...