Background
Respiratory virus season is underway. Influenza, RSV, and COVID-19 remain leading causes of infant hospitalization. An independent evidence review released this week by the Vaccine Integrity Project and the American Medical Association synthesizes hundreds of studies on the 2026–2027 season.
The review examined effectiveness and safety of influenza vaccines, RSV immunizations (maternal vaccine and nirsevimab/clesrovimab), and COVID-19 vaccines in infants and children. It arrives as measles cases continue to climb and as ACOG has extended the maternal RSV vaccine window through March 1.
What changed
The review finds continued strong protection:
These align with AAP and ACOG recommendations and provide independent confirmation for the current season.
Competing viewpoints
Public health agencies emphasize the data: severe outcomes are largely preventable. Critics continue to question safety or necessity for COVID-19 in healthy children and newer RSV products, citing rare passive-system reports. The review found no new patterns that change the risk-benefit balance.
Measles shows the parallel: small drops in coverage produce large outbreaks. The same community-protection principle applies to respiratory viruses that hospitalize infants.
What to watch next
Bring these points to your next visit. Official sources: AAP, ACOG, CDC, FDA.
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