Alaska Department of Fish and Game
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Parasites and Diseases
A Field Guide
TO COMMON WILDLIFE DISEASES
AND PARASITES IN ALASKA
|What causes hoofrot?|
- This disease is caused by the bacterium known as Spherophorous necrophorous.
- This bacterium is a normal inhabitant of the soil. It can also be found in the mouth and intestinal tract of many species of animals.
- The bacteria often enter a susceptible host through a break in the skin directly above the hoof.
|Where does hoofrot occur?|
- Caribou and reindeer are the most common hosts of hoofrot infection.
- This disease can occur in any caribou herd. During the late 1990s, it was observed in the Mulchatna and Western Arctic herds.
- Outbreaks of disease are most common and most severe during periods of extended rainy weather.
|What are the signs of hoofrot?|
- Abscesses form directly above the hoof. The hoof may swell 2 3 times its normal size. The abscess contains thick, foul-smelling pus.
- Infected caribou often limp.
- Abscesses may also be found in other locations, such as the liver, lungs or mouth.
|How can I protect myself?|
- People are theoretically susceptible to infection. However, there have never been any human cases of this disease reported in Alaska.
- Humans should avoid direct contact with pus-filled abscesses.
- If possible, wear rubber gloves when butchering a caribou with abscesses on the hooves.
|Can I eat the meat?|
- The meat of caribou with hoofrot is safe to eat.
- Discard the infected leg. Cook the remainder of the meat thoroughly.
|Samples to collect|