The FDA expanded the approval of the bivalent RSV prefusion F (RSVpreF) vaccine (Abrysvo) to include the prevention of lower respiratory tract disease (LRTD) caused by respiratory syncytial virus (RSV) in high-risk adults ages 18 to 59 years,

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 US pharma giant Pfizer recently announced that its respiratory syncytial virus (RSV) vaccine Abrysvo has received FDA approval in adults aged 18 to 59 who are at an increased risk of developing lower respiratory tract disease caused by RSV (RSV-LRTD).

Pfizer's RSV vaccine Abrysvo receives FDA approval for adults 18-59 at high risk, with extended use for pregnant individuals to safeguard infants from birth.

While it’s a win for Pfizer over GSK and its RSV vaccine Arexvy, which is approved for those 50 and older, it’s difficult to determine how much advantage will be gained from the nod as the Centers for Disease Control (CDC) will have to sign off on Abvrysvo's use in the wider age group.

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.

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.

On Tuesday, the US Food and Drug Administration approved Pfizer’s respiratory syncytial virus (RSV) vaccine, Abrysvo, for people 18 to 59 who are more vulnerable to the virus.

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