This section provides information for vaccine providers regarding Ontario’s Universal Influenza Immunization Program (UIIP).

The Health Protection and Promotion Act 1990 (HPPA), R.S.O., 1990, outlines the requirements for physicians, practitioners, laboratories, and institutions to report any suspect or confirmed influenza cases to the Medical Officer of Health. This information is collected under Regulation 569 of the HPPA.  Influenza is to be reported by the next working day. If the individual presents with a novel or emerging respiratory infection, please report immediately to the Medical Officer of Health.

General Resources

• Universal Influenza Immunization Program (UIIP) for the current influenza season
• National Advisory Committee on Immunization (NACI):
  Canadian Immunization Guide Chapter on Influenza and Statement on Seasonal Influenza Vaccine for 2024-2025
• Government of Canada - Flu (influenza): For Health Professionals
• WECHU Vaccine Information for Vaccine Providers

Product Monographs

• Fluzone® High-Dose Quadrivalent
• Fluzone® Quadrivalent
• Flulaval Tetra
• Fluad®
• Flucelvax® Quad

Letters from CMOH

• CMOH Letter to Health Care Providers Re: Universal Influenza Immunization Program (UIIP) – 2024/2025 – ENG – 2024-09-12

Health Care Provider Guidance Documents

• NACI Guidance on Influenza Vaccination during Pregnancy 
• Vaccine Storage and Handling Guidelines
• Public Health Ontario: Vaccine Safety

Fact Sheets

• Health Care Provider Fact Sheets

Adverse Events Following Immunization (AEFIs)

• Serious side effects from vaccines are rare.
• Many negative events can be avoided through proper administration of vaccines and assessing patients for contraindications prior to immunization.
• Physicians, members of the College of Nurses of Ontario, and members of the Ontario College of Pharmacists must report AEFI to their Medical Officer of Health under Section 38 of the Health Protection and Promotion Act (HPPA).
• For the safe monitoring of vaccines, it is important to report any adverse effects after an immunization. The Adverse Events Following Immunization report form should be completed as soon as possible and submitted to the Windsor-Essex County Health Unit.
• Submit completed AEFI report form by emailing vaccine@wechu.org or fax to 519-977-1711. If you have questions, phone 519-258-2146, ext. 1121 or email vaccine@wechu.org
• AEFI Fact Sheet (PDF)

Diagnostic Testing & Treatment Updates

• Public Health Ontario Laboratory: Influenza testing with nasopharyngeal swab
• Public Health Ontario Laboratory: Labstract (October 2020) - Respiratory Virus Testing Update
• Public Health Ontario Factsheet: Influenza Antiviral Treatment

Influenza Immunization Awareness Posters

• Browse a list of downloadable immunization posters from Immunize Canada, available in English and French.