- 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.
Salmonella enterica Paratyphi
Paratyphoid Fever
Paratyphoid fever is caused by the bacteria Salmonella enterica Paratyphi. It is spread through consuming contaminated food or water and can be spread from person to person. This disease is not typically acquired in Ontario. It is associated with travel to countries that do not have adequate food safety, or sewage and water treatment.
Proper hygiene and food preparation can help to prevent illness.
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 paratyphoid fever by year
More Information about Paratyphoid Fever
North Bay Parry Sound District Health Unit
Report to the Health Unit within one business day by fax (705-482-0670) or phone at 705-474-1400 or toll free at 1-800-563-2808, ext. 5229 if paratyphoid 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.
Should one go to childcare, school, or work if they have paratyphoid fever?
Contact the Health Unit. People who test positive for Paratyphoid Fever (Salmonella enterica Paratyphi) must be excluded from certain settings and job duties (i.e., food handling, healthcare, and childcare). Select people who have come into contact with someone who has tested positive must also be excluded.
Follow the direction of your healthcare provider, public health case manager, or occupational health at your workplace.
Healthcare provider information
Caring for Kids New to Canada
Paratyphoid fever is caused by a strain of salmonella (Salmonella enterica Paratyphi).
For testing information see Public Health Ontario's Test Information Index: Enteric Bacteria.
Public Health Ontario
Ministry of Health - Ontario Public Health Standards
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