By Dec. 30, 2023, almost 5% of emergency room visits in New York were for people diagnosed with the flu, almost 4% for COVID-19, and 0.9% for RSV.

RSV cases in small children are spiking across Philadelphia region, doctors warn "Four out of every 1,000 babies under six months old are being hospitalized for RSV," a local doctor said.

How much does the RSV immunization cost? The out-of-pocket cost for the RSV vaccine varies depending on the provider. It typically ranges around $300.