Cases of R.S.V. have risen gradually since early June, with an even greater spike in the past month, according to data from the Centers for Disease Control and Prevention. The illness, which can cause symptoms that include a runny nose, coughing, sneezing and fever, normally begins to spread in the fall, making this summer spike unusual.
Photographed for The New York Times, with words by Jesus Jiménez.
In addition to Covid, more children are getting a respiratory virus more commonly seen in winter.
An outbreak of respiratory syncytial virus, combined with growing Covid-19 pediatric cases, is straining hospital resources in some U.S. cities.