




Do you have an infant or a young child at home and are wondering how to best protect them against RSV? We’ve put together a quick guide that gathers the latest NACI recommendations and more.
Check it out and share it with your parent friends who might be wondering too!
Decision Tree
- How old is your child?
- Less than 8 months – First RSV season (3)
- Between 8-19 months – Second RSV season (7)
- Older than 19 months – Third or later RSV season (2)
- Your child is not considered at high risk this season – No routine recommendation
- Does your child have a condition that increases the risk of severe RSV disease*?
- Yes (6)
- No (4)
- Did the pregnant parent receive RSVpreF, the vaccine against RSV, while pregnant?
- Yes (5)
- No (6)
- Was your child born less than 2 weeks after the pregnant parent received their RSV vaccine?
- Yes (6)
- No (2)
- Your child is recommended to receive monoclonal antibodies against RSV this season.
- Does your child have a condition that increases the risk of severe RSV disease*?
- Yes (6)
- No (2)
*Conditions increasing the risk of severe RSV disease in infants and children*:
- Chronic lung disease, including bronchopulmonary dysplasia, requiring ongoing assisted ventilation, oxygen therapy or chronic medical therapy in the 6 months prior to the start of the RSV season
- Cystic fibrosis with respiratory involvement and/or growth delay
- Haemodynamically significant chronic cardiac disease
- Severe immunodeficiency
- Severe congenital airway anomalies impairing clearing of respiratory secretions
- Neuromuscular disease impairing clearing of respiratory secretions
- Down syndrome
- Premature infants less than 32 week of gestational age
Sources
- RSV (Respiratory syncytial virus) | Caring for kids
- Respiratory syncytial virus (RSV) | World Health Organization | December 2025
- Statement on the prevention of respiratory syncytial virus disease in infants | Government of Canada – Public Health Agency of Canada | 2024
- Burden of disease of RSV in infants, children and pregnant women and people | Government of Canada – Public Health Agency of Canada | January/February 2024
- Respiratory syncytial virus (RSV): Spread, prevention and risks | Government of Canada
- Updated guidance to protect infants and children from respiratory syncytial virus (RSV) disease: use of monoclonal antibodies (nirsevimab and clesrovimab) and the RSVpreF vaccine | National Advisory Committee on Immunization (NACI) | April 2026
- Respiratory syncytial virus (RSV) vaccines: Canadian Immunization Guide | Government of Canada | Partial update May 2026
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