- Case counts (2016-2025), population estimates (2016-2023), & population projections (2024-2025): Public Health Ontario.
- Query: Case counts of reportable diseases by public health unit and year. Toronto, ON: Ontario Agency for Health Protection and Promotion; extracted on March 9, 2026.
Hemorrhagic Fevers
Viral hemorrhagic fevers (VHFs) include a number of severe, life-threatening illnesses caused by viruses such as Ebola, Marburg, and Lassa. These viruses affect the body’s vascular (blood) system and can lead to significant internal bleeding and organ failure and are primarily spread through direct contact with infected bodily fluids. Although outbreaks of VHFs have occurred in many parts of the world, there have been no confirmed cases in Ontario.
Local Information
2025 Statistics
Incidence rate is the number of new cases of disease divided by the number of persons at risk for the disease during a particular time period.
Cases:
0*
Incidence rate per 100,000 in 2025: 0
*Includes confirmed cases in 2025.
Incidence rate per 100,000 of Hemorrhagic Fevers by year
More Information about Hemorrhagic Fevers
Public Health Agency of Canada Ebola Disease: English and Français
Public Health Agency of Canada Lassa Fever: English and Français
Public Health Agency of Canada Marburg Virus Disease: English and Français
Public Health Agency of Canada Dengue Fever: English and Français
Public Health Agency of Canada Yellow Fever: English and Français
Public Health Agency of Canada Rift Valley Fever: English and Français
World Health Organization Crimean-Congo Haemorrhagic Fever: English and Français
Arenaviruses: English and Français
Centres for Disease Control and Prevention: About Kyasanur Forest Disease
Centres for Disease Control and Prevention: About Omsk Hemorrhagic Fever
Report to the Health Unit immediately by fax (705-482-0670) and phone at 705-474-1400 or toll free at 1-800-563-2808, ext. 5229 if hemorrhagic fever is suspected or confirmed as per Ontario Regulation 135/18 and amendments under the Health Protection and Promotion Act, R.S.O., c.H.7.
After hours, weekends, and holidays, call 705-474-1400 then press 0 to speak with the Answering Service. The on-call CDC Public Health Nurse will get back to you as soon as possible.
Should one go to childcare, school, or work if they have hemorrhagic fever?
Contact the Health Unit.
Only yellow fever is preventable by vaccination. Check your vaccination records or call the Vaccine Preventable Diseases program at 705-474-1400 or toll free at 1-800-563-2808, ext. 5252 to book a vaccination appointment or to obtain additional information.
Contact our Communicable Disease Control (CDC) program at 705-474-1400 or toll free at 1-800-563-2808, ext. 5229, or by email to cdc@healthunit.ca for more information.
Last updated: Apr 2026, by CDC