Caution Issued on Bison Hunting Near Mackenzie Due to Suspected Anthrax Case

Anthrax Scare Prompts Bison Hunting pause in Northwest Territories

Yellowknife, N.W.T. – Authorities are urging hunters to temporarily halt harvesting bison in the Mackenzie region of the Northwest Territories due to a suspected case of anthrax. The advisory, issued by the GNWT, follows the revelation of a deceased bison carrying symptoms consistent with the potentially fatal disease.

Officials confirmed responding to the situation and are investigating the cause of the death. the area affected includes both private and public land. Cabin Radio reports that further testing is underway to confirm the presence of anthrax.

This situation echoes concerns raised by a recent case in the North Slave region, where a dead bison was also investigated for possible anthrax infection. CBC News reported on the ongoing monitoring and assessment by relevant authorities. While the risk to humans remains low, authorities are advising residents to take precautions and report any unusual animal deaths.

What is Anthrax?

Anthrax is a serious infectious disease caused by the bacterium Bacillus anthracis. It affects livestock and wild animals but can also infect humans. Exposure typically occurs through direct contact with infected animals or contaminated animal products.

Key Facts About Anthrax in Bison:

| Factor | Detail |
|—|—|
| Cause | bacillus anthracis bacterium |
| Transmission | Contact with infected animals or products |
| Symptoms in Bison | Sudden death, bloating, lack of rigor mortis |
| Risk to Humans | Low, but contact with infected animals should be avoided |
| Reporting | Report any unusual animal deaths to local authorities |

Did You Know? Anthrax isn’t new to the N.W.T. Sporadic outbreaks have been documented in the past, especially during warmer and wetter summers which encourage bacterial growth. Find more details on Anthrax from the Yukon Government here.

This latest case highlights the importance of ongoing wildlife surveillance. The GNWT states that early detection and rapid response are crucial in controlling potential outbreaks.

Pro tip: If you live in or near areas where bison roam, be vigilant about observing their health. Any animal found dead in an unusual state should be reported instantly to the local Environment and Natural Resources office.

What should hunters do?

Currently,hunters in the affected region are advised to put their activity on hold. Officials are working to better understand the situation and assess the extent of the potential risk. A further update will be provided once testing results are available.

Are there implications beyond hunting?

While the primary concern is for hunters and those handling wild game, the event underscores the importance of biosecurity across the region. Continued vigilance in monitoring livestock and reporting animal health concerns is vital in mitigating the potential spread of anthrax.What are the next steps?

The GNWT continues to monitor the situation closely, conducting further testing on the bison carcass and outlining plans to mitigate any further risk.

What are the primary ways bison become infected with anthrax?

Understanding the Anthrax Risk in Bison

A public health caution has been issued regarding bison hunting in areas near Mackenzie, stemming from a suspected case of anthrax.This isn’t a typical hunting safety concern, so understanding the disease and the risks is crucial for hunters, landowners, and the public. Anthrax, while rare, is a serious infectious disease caused by the bacterium Bacillus anthracis. It primarily affects livestock and wild animals, including bison, and can, in rare instances, infect humans. This situation highlights the importance of wildlife disease surveillance and preventative measures.

How Anthrax Spreads: The Cycle of Infection

Anthrax spores are incredibly resilient and can survive in the soil for decades. here’s how the infection cycle typically unfolds:

animal Ingestion: Bison become infected when they graze on pastures contaminated with anthrax spores.

Spore Activation: Once ingested, the spores can activate and multiply within the animal.

Sudden death: Anthrax often causes sudden death in affected animals, especially in bison.

Spore Release: When an animal dies from anthrax, the bacteria release new spores into the environment, continuing the cycle.

Human Exposure: Humans can become infected through contact with infected animals, their hides, or contaminated soil.

The MSD Manual Professional Edition notes that pulmonary anthrax (inhalation anthrax) is almost always due to occupational exposure to contaminated animal products like hides and is often fatal. Importantly, gastrointestinal and inhalation anthrax are not transmitted person-to-person.

Risks to Hunters & Handling Precautions

hunters participating in the bison hunt near Mackenzie face potential exposure risks. Here’s what you need to know:

Avoid Handling Sick Animals: Do not approach or handle any bison that appears sick or acts abnormally. Report any suspicious animal behavior to local wildlife authorities instantly.

Protective Gear is Essential: When field dressing a bison, always wear:

Gloves: Heavy-duty, waterproof gloves are a must.

Mask: A properly fitted N95 respirator to prevent inhalation of spores.

Eye Protection: Goggles or a face shield to protect your eyes.

Protective Clothing: long sleeves, long pants, and waterproof boots.

Proper Disposal of Carcasses: Follow all guidelines provided by wildlife officials regarding the disposal of carcasses. Do not attempt to move a carcass yourself if anthrax is suspected.

decontamination: Thoroughly disinfect all hunting equipment (knives, saws, vehicles) that may have come into contact with the animal. Use a bleach solution (1 part bleach to 9 parts water) and allow for adequate contact time.

Report Any Illness: If you develop flu-like symptoms (fever, chills, muscle aches) after handling a bison, seek medical attention immediately and inform your doctor about potential anthrax exposure.

Anthrax Symptoms in Humans: What to watch For

Human anthrax infection is rare, but recognizing the symptoms is vital for prompt treatment. The symptoms vary depending on how the anthrax enters the body:

Cutaneous Anthrax (Skin): This is the most common form. It starts as a small, itchy bump that develops into a painless sore with a black center.

Inhalation Anthrax (Lungs): This is the most serious form.Symptoms resemble the flu initially, but can quickly progress to severe breathing problems and shock.

Gastrointestinal Anthrax (Digestive System): Symptoms include nausea, vomiting, abdominal pain, and bloody diarrhea.

Regional Impact & Wildlife Management

The suspected anthrax case near Mackenzie is prompting increased wildlife monitoring and potential preventative measures. Local authorities are likely to:

Increase Surveillance: Intensify monitoring of bison herds for signs of illness.

Carcass Removal: Implement a plan for the safe removal and disposal of any animals that die from anthrax.

Vaccination (Potential): In some cases, vaccination of livestock in surrounding areas may be considered to prevent further spread.

Public education: Continue to educate the public, particularly hunters, about the risks of anthrax and how to protect themselves.

Resources for Further Facts

MSD Manual Professional Edition – Anthrax: https://www.msdmanuals.com/professional/infectious-diseases/gram-positive-bacilli/anthrax

Local Wildlife Authorities: contact your regional wildlife agency for specific guidance and updates.

Centers for Disease Control and Prevention (CDC): https://www.cdc.gov/anthrax/index.html