Respiratory virus season is in full swing across California, with several illnesses spreading across the state. Cases of ...

Respiratory viruses, including RSV, but are more typically active from October through March, according to state health ...

Winter illnesses are slamming the U.S. A mutant influenza variant is sending scores of people to hospitals, 32 children have ...

Infants born even a few weeks early face a markedly higher risk for severe RSV, with late-preterm babies more likely to land ...

Nirsevimab may offer infants stronger protection against severe respiratory syncytial virus than maternal vaccination, ...

State health officials confirmed a second pediatric death associated with the flu this season. Here's what to know.

Cases of the respiratory illness are rising in January 2026 across the state, including in the Sacramento area.

Amid a surprisingly severe flu season and a COVID-19 resurgence, those highly contagious respiratory illnesses are drawing ...

The single-dose injection can help prevent RSV. Learn how it works and when your baby may be eligible.

Influenza activity across Iowa remained very high last week, while COVID-19 and respiratory syncytial virus activity declined ...

Total RSV cases in children 12 months or younger were significantly lower in states with population-wide nirsevimab ...

Health experts on Friday urged the public to remain vigilant against influenza-like illnesses (ILIs), particularly respiratory syncytial virus (RSV), as the country experiences cooler temperatures.