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Physician Notices and Updates

Physician Notices and Updates

RSV Prevention Program: Product updates and reminders

Halton Region Public Health: Office of the Medical Officer of Health

Quick facts

  • There is an adequate supply of RSV immunizing agents for the Infant and High-Risk Adult Prevention Programs.
  • Public Health Units have received more doses of Arexvy® than AbrysvoTM. Therefore, Arexvy® should be used to immunize eligible adults, aged 60+.
  • Abrysvo™ should be reserved for pregnant individuals who do not wish or are not able to protect their infant with Beyfortus®.
  • To place an order for RSV products, fax a completed RSV Product Order Form (PDF file) to 905-465-3403.
  • For more details, watch the recording of our recent webinar, Preparing your practice for Influenza, COVID-19 and RSV (YouTube video).

Key information

  • Abrysvo™ and Arexvy® are the two publicly funded vaccines authorized by Health Canada for the prevention of RSV lower respiratory tract disease in adults 60 years of age and older.
  • While Beyfortus® is the preferred product for infant protection, Abrysvo™ is authorized for use in pregnant individuals between 32-36 weeks gestation who are expected to deliver during the RSV season.
  • To ensure availability of AbrysvoTM for eligible pregnant individuals, Arexvy® should be used to immunize eligible adults aged 60+ under the Older Adult Program.
  • Abrysvo™ should be reserved for pregnant individuals that meet the eligibility criteria for the Infant RSV Prevention Program (external link).
  • Beyfortus® 50 mg is indicated for infants under 5 kg. As of October 1, 2025, all babies born in hospital are offered Beyfortus® prior to discharge. Primary care providers should anticipate that very few of their patients will require a 50 mg dose of Beyfortus®.
  • When planning your vaccine order, consider your available fridge space. Order smaller quantities of each vaccine type more frequently, as no vaccine supply disruptions are anticipated this year.

Additional resources

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