What Ontario’s New HIV Numbers Mean for Our Community
Ontario’s latest HIV report for 2023 gives us a clearer picture of what’s happening with HIV across the province — and what it means for gay, bi, and other men who have sex with men (MSM). The report confirms some things many of us already know, while also highlighting a few changes worth paying attention to.
HIV diagnoses in Ontario: the big picture
In 2023, Ontario recorded 938 “first-time” HIV diagnoses through lab testing, but after digging deeper into older records (to remove people who were diagnosed out of province), the number drops to 723 actual first-time diagnoses.
About three-quarters of these diagnoses were in men, and among those men, male-to-male sexual contact accounted for nearly 73% of cases where exposure information was reported.
In other words: MSM (men who have sex with men) continue to make up the largest group of people diagnosed with HIV in Ontario.
Who in the community is most affected?
The data show that HIV diagnoses aren’t limited to one age group, one neighbourhood, or one type of guy. But some patterns stand out:
- Age 30–49 is where we see the highest number of new diagnoses.
While younger guys (20–29) are definitely part of the picture, the 30s and 40s see the biggest share. - Toronto remains the centre of the epidemic — almost half of all new diagnoses happened in the Toronto region.
This likely reflects population size, community density, dating and hookup networks, and access to testing. - Racialized communities, especially Black MSM, are seeing a growing share of new diagnoses.
Among all people diagnosed in 2023 who reported race/ethnicity, Black individuals made up the largest proportion. This points to overlapping factors like stigma, access issues, and broader social inequities.
What this means for MSM across Ontario
1. HIV still affects our community more than others — but we have tools we didn’t have before.
Prevention options like PrEP and PEP work extremely well, and treatment means people living with HIV who are undetectable cannot pass the virus on (U=U). The data doesn’t mean panic — it means staying informed.
2. HIV is not “a young man’s issue.”
Many new diagnoses are in men in their 30s and 40s. Regardless of age, regular testing and sexual health check-ins remain important.
3. Where you live matters — but only somewhat.
Yes, Toronto shows the highest numbers, but that’s also where the largest MSM population is. If you’re in a smaller city or suburban region, services may be more spread out, so knowing where to get testing or PrEP can make a real difference.
4. Race, stigma, and access still shape who gets diagnosed.
For Black MSM and other racialized men, the higher rates in the report reflect a need for better access to testing, culturally safe care, and community-led support. The numbers aren’t about individuals — they’re about systems.
5. A “first-time diagnosis” doesn’t always mean a new infection.
Some people were diagnosed years ago but hadn’t been captured in Ontario’s older data systems until recently. That means the report is a mix of truly new infections and older diagnoses that are only now being counted. The takeaway? Testing early and often helps individuals and communities stay healthy.
What you can take away from all of this
- If you’re sexually active, especially with multiple or new partners, consider regular HIV and STI testing as part of normal self-care.
- If you’re thinking about PrEP, this report is a good reminder that it can significantly reduce risk.
- If you’re living with HIV, the data reinforces what we already know: treatment works, and U=U protects both your own health and your partners.
- If you’re part of a racialized MSM community, know that structural barriers play a big role — and that you deserve care that respects your identity and experiences.
Understanding the numbers is just one way we look out for each other. Our community has always led the way in advocating for health, access, and dignity — and staying informed is part of that legacy.
Full report:
HIV Diagnoses in Ontario, 2023 – OHESI
Current Trends for HIV in Ontario
