“These promising data add to the evidence supporting GSK’s RSV vaccine and could help expand protection to more adults at risk from RSV disease,” the company’s chief scientific officer, Tony Wood, Ph.D., said in a release. “They also provide valuable insights into the potential impact of a second dose for certain populations.”

The U.S. Food and Drug Administration on Tuesday approved Pfizer's RSV vaccine for the prevention of lower respiratory tract disease caused by RSV in adults aged 18 to 59 at increased risk of the disease.

Approval of Pfizer's Abrysvo in certain adults aged 18 to 59 years old will substantially expand the number of people eligible for vaccination with the shot.

Abrysvo is the first vaccine for the respiratory syncytial virus that is indicated for adults younger than 50, the drugmaker said.

Pfizer’s Abrysvo is the first respiratory syncytial virus vaccine that can be used for adults less than 50 years of age. Tuesday’s label expansion covers younger adults who are deemed at higher risk of RSV-related lower respiratory tract disease.

Pfizer Inc. PFE announced that the FDA has granted approval for the expanded use of its respiratory syncytial virus (RSV) vaccine, Abrysvo, in adults aged 18-59 years. The vaccine has been approved for the prevention of lower respiratory tract disease (LRTD) caused by RSV in patients aged 18-59 years who are at increased risk of the disease.

The U.S. FDA has approved Pfizer's respiratory syncytial virus vaccine Abrysvo for individuals 18 to 59 years old that are at increased risk of lower respiratory tract disease from the virus. Those conditions include obesity,