Have questions about one of our products or services, or need support or advice for public health practice? Find out below how to contact us. For inquiries about public health issues or services in your community, contact your local public health unit.

For medical or health information, please contact your local health care provider. If you do not have a health care provider, contact Health811.

For medical emergencies, call 911.

Public Health Ontario

661 University Avenue, Suite 1701
Toronto, ON M5G 1M1 

General Inquiries
(Monday–Friday, 8:30 a.m. –4:30 p.m. EST)
Toll Free: 1-877-543-8931

Media Inquiries
(Monday–Friday, 8:30 a.m.–4:30 p.m. EST)
Tel.: 647-260-7247

Laboratory Customer Service
(Monday–Friday, 7:30 a.m.–7 p.m. EST; Saturday 8 a.m. –3:45 p.m. EST)
Tel.: 416-235-6556
Toll Free: 1-877-604-4567

COVID-19 Questions

COVID-19 Vaccines
For vaccine eligibility criteria and booking information visit the Government of Ontario's website or call the Provincial Vaccine Information Line at 1-888-999-6488 (TTY 1-866-797-0007).

For a copy of your vaccine receipt visit If you were vaccinated in another country/province and have questions about updating your health records, please contact your local public health unit for more information.

For information on travelling to and from Ontario from another Canadian province visit the Government of Ontario’s website. For questions about international travel, hotel quarantine and testing visit the Government of Canada’s website, email or call 1-833-784-4397 (TTY: 1-800-465-7735).

COVID-19 Test Results
If you have questions about your results, or your results are not available online, please contact the location where you were tested or your health care provider.

How to Contact Us


General inquires
Monday to Friday: 7:30 a.m. to 7 p.m.
Saturday: 8 a.m. to 3:45 p.m

Tel.: 416-235-6556
Toll Free: 1-877-604-4567 
Fax: 416-235-6552


Incident and outbreak response

To find your local laboratory location, check out our Laboratory Contact page.


Health Protection

General inquiries

Communicable Diseases

Enteric, Zoonotic and Vector-borne Diseases

Immunization, Vaccine-preventable Diseases and Vaccine Safety

Infection Prevention and Control
Learn more about the updated IPAC team.


Environmental and Occupational Health


Health Promotion, Chronic Diseases and Injury Prevention

Other Inquires

Learn more about protection personal health information at PHO on our Privacy page.

Adapt PHO Materials
To request permission to adapt PHO materials, please fill out our Request Form.
For other inquiries such as logo requests, subscriptions to PHO publications, accessibility please contact

Website and Technical Issues
Read our website Frequently Asked Questions for information on website registration, login and password reset, subscriptions and online learning

For all website inquiries, please fill out our Report Technical Issues Form.

For technical support with our online learning system, email
Updated 13 Nov 2023