In a test-negative case-control study of 274 hospitalized infants aged 90 days or younger, maternal RSVpreF vaccination was associated with 67.6% effectiveness against RSV-associated acute respiratory illness hospitalization. Protection was similar against RSV-linked lower respiratory tract disease, with the highest point estimate in the first month of life, although confidence intervals were wide.

A study led by researchers at the University of Pittsburgh and UPMC published in JAMA Network Open, found that vaccination against respiratory syncytial virus (RSV) during pregnancy reduced the risk of ...