Research shows infant deaths from respiratory syncytial virus (RSV) can be uncommon and there may be fewer fatalities than previously believed.

This new information may help guide appropriate prevention and treatment strategies. For example, medication that helps prevent RSV hospitalizations is very costly. “The use of these medications has been controversial,” says Byington. “This research may help guide more appropriate use of these costly medications for the infants and young children most at risk for developing severe complications,” she said.