A pediatric vaccine for respiratory syncytial virus (RSV) is proving to be elusive, according to news from the U.S. Food and Drug Administration.
RSV is a highly contagious, common respiratory virus that infects the nose, throat, and lungs. And while it does not usually cause severe illness in healthy adults and children, some people with RSV infection, especially older adults and infants younger than 6 months of age, can become very sick and may need to be hospitalized.
