Pfizer’s experimental RSV vaccine protects older adults in study

A vaccine Pfizer is developing protected older adults against the respiratory syncytial virus, or RSV, which is a common cause of hospitalization and death in the U.S., the company said Thursday.

The experimental vaccine, known as RSVpreF, is considered a key product in Pfizer’s pipeline of experimental drugs. Right now drug companies are close to launching several different products against RSV, focused on protecting both older adults and infants.