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Middlesex-London Health Unit

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Influenza for Healthcare Providers

The following list of resources will assist healthcare providers during the influenza season. Please note: This web page is updated with the latest documents and links on a regular basis.

2023-2024 UIIP Vaccine Chart (PDF)

2023-2024 Seasonal Influenza Vaccine Consent Form (PDF)

Important Notice for Flu Vaccine Ordering:

Changes to the influenza vaccine distribution model for the upcoming influenza season (2023/2024)

The Middlesex-London Health Unit will no longer be automatically pre-packaging initial allocations of influenza vaccine. This year, the Health Unit is asking providers to submit orders for their initial supply of influenza vaccine using the Public Health Ordering System (PHOS) like all other routine vaccines. Long-term care homes, retirement homes, and hospitals can begin ordering the week of September 18th, 2023. Doctor’s offices and other healthcare providers can begin ordering the week of September 25th, 2023. Once your order has been placed, you will receive an email indicating your order has been approved and a pick-up date will be provided. If you have any questions or feedback about this new model, please email or call 519-663-5317 and ask to speak to the Vaccine Preventable Disease Team.

Public Health Ordering System (PHOS)

All healthcare providers who order vaccines must use the online Public Health Ordering System (PHOS). To register for PHOS, please have your organization's primary contact complete the online registration form. Orders placed via fax or email are no longer being processed.


Statement on Seasonal Influenza Vaccine

  • The Canadian recommendations for Influenza vaccine are stated by the National Advisory Committee on Immunization (NACI) each year. Provinces take this information into consideration when implementing their own recommendations. 

Co-Administration of Vaccines with the COVID-19 Vaccines

NACI recommends that COVID-19 vaccines may be administered concomitantly with, or at any time before or after, non-COVID-19 vaccines, including live, non-live, adjuvanted, or unadjuvanted vaccines. Health-care providers are asked to consider, as appropriate, co-administration of COVID-19 vaccine and flu vaccine whenever possible. All available influenza vaccines may be given at the same time as, or anytime before or after the available COVID-19 vaccines. If given by injection at the same time, separate limbs should be used if possible. Injections administered into the same muscle should be spaced at least 1 inch (2.5 cm) apart. Different immunization equipment (needle and syringe) must be used for each vaccine. For more information about COVID-19 vaccine, visit

2023-2024 Universal Influenza Immunization Program Implementation Package

Components of 2023-2024 Influenza Vaccine

The World Health Organization recommends which components should be included in influenza vaccines each year. For the 2023-2024 influenza season, in the Northern Hemisphere, these will be:

Egg-based QIVs (FluLaval Tetra, FLUZONE Quadrivalent ®, FLUZONE High-Dose Quadrivalent®)

  • A/Victoria/4897/2022 (H1N1) pdm09-like virus;
  • A/Darwin/9/2021 (H3N2)-like virus;
  • B/Austria/1359417/2021 (B/Victoria lineage)-like virus;
  • B/Phuket/3073/2013 (B/Yamagata lineage)- like virus

Egg-based TIVs (Fluad®)

  • A/Victoria/4897/2022 (H1N1) pdm09-like virus;
  • A/Darwin/9/2021 (H3N2)-like virus;
  • B/Austria/1359417/2021 (B/Victoria lineage)-like virus;

Influenza Vaccine Product Monographs

Seasonal Influenza Vaccine Consent Form 

Influenza Immunization Reporting Forms

For the 2021-2022 Universal Influenza Immunization Program, the Ministry of Health no longer requires vaccine utilization reports from facilities that participate.

Reporting Requirements for Health Care Worker Influenza Immunization (Long-Term Care Homes and Public Hospitals)

  • Long-term care homes and publicly hospitals are required to report health care worker immunization rates to the Health Unit by mid to late January 2023. Further details regarding collection of health care worker coverage rates, including forms, will be provided when available.

Reporting Requirements for Long-Term Care Home Resident Influenza Immunization

  • Long-term care homes are required to report resident immunization rates to the Health Unit by mid to late January 2023. Further details regarding collection of resident coverage rates, including forms, will be provided when available. 

Influenza Outbreak Tools

Line Lists

Specimen Collection and Testing



Local Surveillance

  • Middlesex-London Health Unit Influenza Surveillance Reports
    The Middlesex London Health Unit’s Influenza Surveillance Report is published weekly during the influenza season (November to May). The purpose of the influenza surveillance report is to provide a picture of influenza activity in Middlesex London.

Provincial Surveillance

  • Ontario Respiratory Virus Tool
    The Ontario Respiratory Virus Tool provides comprehensive epidemiological information of respiratory virus activity in Ontario, including COVID-19, influenza and other respiratory viruses.

National Surveillance


COVID-19 Pandemic Considerations

The COVID-19 pandemic creates a series of challenges for the delivery of the seasonal influenza immunization program. The following resources have been developed by NACI to address these challenges in various health care settings. 

For additional guidance and setting specific resources, including others on immunization, visit COVID-19 Guidance and Resources for Health Care Providers and Institutions.

Date of creation: October 2, 2013
Last modified on: December 18, 2023