Livestock farmers warned after anthrax kills sheep in RM of South Qu’Appelle

Laboratory results from the death of a sheep in Saskatchewan have confirmed the presence of anthrax in the province.

The results confirmed the presence of anthrax as the cause of death for one sheep of a flock in the RM of South Qu’Appelle just east of Regina.

Four other sheep deaths on the same premises are suspected to also be due to the disease.

Anthrax is a serious infectious illness caused by rod-shaped bacteria called Bacillus anthracis. It can be commonly found in soil, where the bacteria can survive in spore form for decades. Changes in soil moisture from flooding and dry weather can build up spores on land.

Spores concentrate in sloughs and potholes and can cause an increased risk of animal exposure to anthrax during years when the climate is dry. Spores also surface after excavation or when excessive runoff occurs.

The Ministry of Agriculture is reminding producers to watch for the disease in their livestock. Animals become infected by the disease when they eat hay or grass contaminated with spores.

Hoofed grazing animals like bison, cattle, sheep and goats are considered highly susceptible to anthrax. Horses can be infected also. Pigs, birds and carnivores are more resistant to the disease, but farm dogs and cats should be kept away from carcasses, according to a government release.

Animals who were infected are often found dead without signs of illness.

Anthrax is preventable through vaccination and producers in areas that have had previous outbreaks of the disease are strongly encouraged to annually vaccinate their animals. Producers whose neighbours’ animals have anthrax should also consider vaccinating their animals.

To prevent the spread of spores in the environment, any remains of animals that are suspected to have died of anthrax should not be moved or disturbed, and should be protected from scavengers.

Anyone who believes anthrax is a present risk to their animals should contact their local veterinarian as soon as possible to have their animals diagnosed. All tests completed must be confirmed by a laboratory diagnosis and all positive test results must be reported to the provincial Chief Veterinary Officer immediately.

When handling a carcass that could be infected, producers are advised to be cautious. Humans are at minimal risk to the disease through animal cases, but direct contact with sick animals or carcasses can lead to human infection.

If someone believes they have been exposed to an infected animal, they should contact their local health authority or physician for advice.