RSV can be deadly, especially for older adults. What to know about symptoms and the new vaccine
First discovered in chimpanzees in 1956 and in children the following year, respiratory syncytial virus (RSV) isn’t new. Neither is it uncommon among the youngest and oldest populations, infecting most babies and toddlers before their second birthday and accounting for the annual hospitalization of up to 160,000 U.S. adults 60 and older.