Bovine tuberculosis investigations

On this page

Status of the bovine tuberculosis investigation – Manitoba (2025)

The Canadian Food Inspection Agency (CFIA) has launched an investigation into a case of bovine tuberculosis in an animal originating from the Pembina Valley Region of Manitoba that was slaughtered at a federally registered abattoir in Manitoba.

Investigation status as of 2025-07-03

  • Infected herd
    • 1 infected herd which has been humanely depopulated. Laboratory testing is ongoing.
    • The strain found in the infected herd is not a close match to any strain previously reported in livestock or wildlife in North America.
  • Lifeline herds (herds traced from an infected animal in the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Trace-in herds (herds that provided animals to the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Trace-out herds (herds that received animals from the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Contact herds (herds that shared a fence line or may have co-mingled with the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Proximity herds (herds within 5 km of the infected herd)
    • These herds will be tested later in the investigation.
  • Additional information of the disease investigation process

Notices to industry

Status of the bovine tuberculosis investigation – Saskatchewan (2024)

The CFIA investigation and testing following a November 29, 2024, case of bovine tuberculosis (bovine TB) has detected the disease in the herd where the infected animal spent most of its life before slaughter. The CFIA disease investigation is ongoing.

Investigation status as of 2025-07-03

  • Infected herd
    • 1 infected herd has been humanely depopulated with 25 cases of bovine TB to date.
    • Cleaning and disinfection is underway.
    • The strain found in the infected herd is not a close match to any strain previously reported in livestock or wildlife in North America.
  • Lifeline herds (herds traced from an infected animal in the infected herd)
    • 7 herds identified with 3 herds released from quarantine
  • Trace-in herds (herds that provided animals to the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Trace-out herds (herds that received animals from the infected herd)
    • 46 herds identified with 11 herds released from quarantine or no quarantine required.
  • Contact herds (herds that shared a fence line or may have co-mingled with the infected herd)
    • The CFIA continues to identify these herds and prepare for testing.
  • Proximity herds (herds within 5 km of the infected herd)
    • These herds will be tested later in the investigation.
  • Additional information of the disease investigation process

Notices to industry

Status of the bovine tuberculosis investigation – Saskatchewan (2023)

The CFIA has traced the movement of animals to and from the infected herd to identify and eliminate the source and any potential spread of the disease.

Investigation status as of 2025-07-03

  • Infected herd
    • 1 infected herd which has been humanely depopulated and all testing is complete with 32 confirmed cases of bovine tuberculosis.
    • The strain found in the infected herd is not a close match to any strain previously reported in livestock or wildlife in North America.
  • Lifeline herds (herds traced from an infected animal in the infected herd)
    • The single lifeline herd has been released from quarantine and all herd testing is complete.
  • Trace-in herds (herds that provided animals to the infected herd)
    • 2 trace-in herds have been released from quarantine and all herd testing is complete.
  • Trace-out herds (herds that received animals from the infected herd)
    • 5 trace-out herds have been released from quarantine and all herd testing is complete.
  • Contact herds (herds that shared a fence line or may have co-mingled with the infected herd)
    • The single contact herd has been released from quarantine and all herd testing is complete.
  • Proximity herds (herds within 5 km of the infected herd)
    • Testing is ongoing.
  • Additional information of the disease investigation process

Notices to industry

Closed bovine tuberculosis investigation – British Columbia (2018)

The CFIA has received the final laboratory culture results from the bovine tuberculosis (TB) investigation. All of the results were negative and the investigation closed in May 2018.

Case response at a glance

  • 4 cases of bovine TB in a single herd
  • 23,000 animals tested in 42 herds
  • No definitive source of infection identified
  • $3.78 million in compensation payments for producers

Reference material

Wildlife testing

The Agency is working with the provincial government to support the testing of wildlife for bovine TB.

Closed bovine tuberculosis investigation – Western Canada (2016)

The CFIA has received the final laboratory culture results from the bovine tuberculosis (TB) investigation. All of the results were negative and the investigation closed in April 2018.

Case response at a glance

  • 6 cases of bovine TB in a single herd
  • 34,000 animals tested on 145 farms
  • No source of infection identified
  • $39 million in compensation payments for producers

Reference material

Feedback

 

Date modified: