Health officials with Riverside University Health System – Public Health announced on March 26 that a teenager from western Riverside County has died from a flu-related illness. This marks the first confirmed pediatric influenza death in the county for the 2025-2026 flu season.
The death, which occurred in early March, was identified through local death records. According to health officials, the teen did not have any known underlying health conditions and no record of a flu vaccination was found.
Dr. Jennifer Chevinsky, Riverside County Public Health Officer, said, “Such a loss is devastating and is a heartbreaking reminder that seasonal respiratory viruses can be life-threatening, even for otherwise healthy children.”
As of March 20, there have been 115 pediatric influenza-associated deaths reported nationwide this season, including five in California. Approximately 85% of these deaths involved children who were not fully vaccinated against influenza.
Respiratory viruses such as influenza and RSV continue to affect communities and put strain on families and healthcare systems. Dr. Chevinsky said, “These viruses can lead to serious complications for anyone, but especially for young children, older adults and those with underlying conditions. It’s important everyone knows the signs of when to seek emergency care.”
Most people recover from the flu within two weeks or less; however, some develop complications like pneumonia that can be life-threatening. Officials advise seeking immediate medical attention if children experience chest pain, trouble breathing, seizures, severe muscle pain or dehydration while ill with respiratory viruses. Adults should also seek emergency care if they have worsening shortness of breath or chest pain.
Residents are encouraged to stay current on vaccinations and use at-home tests when experiencing symptoms. High-risk patients suspected of having the flu should receive antiviral treatment promptly to reduce risk of serious illness or hospitalization.
Flu season typically runs from October through April each year.
