Extension of Ontario’s RSV prevention program due to ongoing community transmission

 

Ontario’s RSV prevention program for infants and high‑risk children has been extended into April due to ongoing community transmission across the province.

 

Although RSV positivity among young children peaked during the week of January 18, rates remain variable and overall high, particularly among infants and children. Epidemiological indicators, including percent positivity and hospitalizations, continue to show active circulation of RSV in the community.

 

What This Means for Care Providers

Healthcare providers are advised to continue RSV prevention measures for eligible populations until further notice.

 

Key Messages

  • Continue to administer RSV immunizations to eligible infants and children until official communication confirms the end of the 2025/26 RSV prevention program.

  • When considering maternal RSV vaccination, take into account:

    • Timing of vaccination during pregnancy (32–36 weeks gestation)

    • Anticipated timing of the end of RSV season

 

Guidance for the 2026/27 RSV prevention program will be shared ahead of the fall and will include recommendations for infants and children who receive RSV protection later in the current season.

 

What’s Next

Additional information and updated guidance will be communicated as the RSV season progresses.