Human Immunodeficiency Virus (HIV)

HIV infection is caused by a virus that attacks the immune system and destroys cells that fight off other infections and diseases. AIDS is the most severe phase of HIV infection. HIV is most commonly spread through unprotected sex and sharing HIV-contaminated needles or syringes. There is no cure for HIV/AIDS, but it can be effectively managed through treatment.

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Event

PHO Rounds: Respiratory Season 2026–27, Part 2: Overview of Seasonal Respiratory Virus Immunizations in Ontario

The Rounds will review the immunization products available this fall in Ontario, summarize the evidence supporting their use, and highlight new recommendations and changes to the immunization landscape for the 2026–27 respiratory season.

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Contact the Department

Communicable Disease Control

Communicable.DiseaseControl@oahpp.ca

Updated 13 Dec 2024