BILLINGS, Mont. — Respiratory syncytial virus, better known as RSV, is lingering longer than usual this year. The Northern News Network’s Ken Adelblue spoke with Michelle Evans, immunization section supervisor with the Montana Department of Public Health and Human Services, about a recommendation to continue immunizations through April. Typically, the season ends in March.
Later start to the season
Evans said RSV activity began later than usual across the country.
“As a seasonal virus, it follows its own pace each year,” she said. “This year, the CDC observed a later uptick in cases nationwide, showing a slower start to the season.”
Because RSV immunization is typically administered in a narrow window from October through March, Evans said the delayed activity prompted a closer review of trends. The Centers for Disease Control and Prevention advised states to evaluate their own data and adjust accordingly.
“In Montana, we saw the same pattern — a slower start that has continued later into the season, with activity still increasing as we approach the typical end,” she said.
Who should be immunized?
Evans emphasized that parents and caregivers should consult their health care providers about RSV immunization.
In general, immunization is recommended for most infants from birth to 8 months if the mother did not receive vaccination during pregnancy within the recommended timeframe.
“It’s widely recommended for infants entering their first RSV season,” Evans said.
Children up to 19 months old who are at higher risk for severe illness — including those who are immunocompromised or have underlying health conditions — may also be eligible. Evans said those decisions should be made in consultation with a health care provider.
Final thoughts
Evans noted that while many immunizations are administered in hospitals shortly after birth, families who have not yet received RSV protection still have time.
“It’s not too late,” she said. “Families should reach out to their providers to see what options are available.”
Northern News Network
