A cheap, widely available painkiller used for conditions like arthritis has shown promise in reducing respiratory syncytial virus (RSV) in the human respiratory tract, according to an early-stage laboratory study.

RSV is the leading cause of infant hospitalization in the U.S., with babies under 6 months old at highest risk for severe disease and death. The virus also poses a serious health threat to adults over 65.

Get the world’s most fascinating discoveries delivered straight to your inbox.