The first dose of the Pfizer vaccination is 85 percent effective against coronavirus infection between two and four weeks after inoculation, according to a study published in the Lancet medical ...

Everything you need to know about the COVID vaccine, when you'll get it, how much it will cost and what it means.

A Lyme disease vaccine produced by Pfizer and Valneva was deemed 70 percent effective by the companies after they reviewed the results from a phase 3 trial. If approved by regulators, it would be the ...

Pfizer Inc. said its experimental Lyme disease vaccine was 73% effective against the tick-borne illness, though fewer-than-expected cases in a study made it hard to determine how well it works on a ...

(Bloomberg) -- Pfizer Inc. said its experimental Lyme disease vaccine was 73% effective against the tick-borne illness, a lackluster result as fewer-than-expected infections in the pivotal study made ...