Neosporosis: Recognizing and Preventing Neospora caninum Infections

*Staff Note* – We know from several studies, that the gray wolf, and thus all wolves, as well as canines in general, are definitive hosts of Neospora Caninum. It has been noted by science members of Wolf Education International, that this particular report does not do a good enough job in pointing out that wolves, […]

Canines Host to Abortion-Causing Parasite

Eventually, after submitting fetuses to the Wisconsin Veterinary Diagnostic Laboratory for testing, the Koenses found the cause of their herd abortion problem to be Neospora caninum, a protozoan parasite that can affect a variety of large and small animal species, including cows, sheep, deer, goats and horses. The parasite causes a disease called neosporosis, which […]

Effects of Wolves and Other Predators on Farms in Wisconsin: Beyond Verified Losses

With the recolonization of gray wolves (Canis lupus) across the Western Great Lake States (Minnesota, Michigan, and Wisconsin) there has been a concomitant increase in livestock depredations caused by wolves (Mech 1998, Ruid et al. 2005, Treves et al. 2002, USDA 2006, Wydeven et al. 2006). Wolf populations in Wisconsin have grown from 25 in […]

Coyotes (Canis latrans) are definitive hosts of Neospora caninum

Abstract Four captive-raised coyote pups consumed tissues from Neospora caninum-infected calves. Faeces were examined from 4 days before to 28 days after infection. One pup shed N. caninum-like oocysts, which tested positive for N. caninum and negative for Hammondia heydorni using PCR tests. Coyotes are the second discovered definitive host of N. caninum, after dogs. […]

Neospora caninum is heartbreaker for cow/calf operators

A protozoan parasite that causes spontaneous abortions, stillborn calves and premature births in cattle is a growing concern in northern Minnesota. Neospora caninum (ka-ni-num) can enter a cowherd when wolves, coyotes, fox or dogs feed on placenta, dead calves or deer that contain the parasite. When the canines defecate, the parasite egg is transferred to […]

Overview of Neosporosis

This report made available through Merck Neospora caninum is a microscopic protozoan parasite with worldwide distribution. Many domestic (eg, dogs, cattle, sheep, goats, water buffalo, horses, chickens) and wild and captive animals (eg, deer, rhinoceros, rodents, rabbits, coyotes, wolves, foxes) can be infected. Neosporosis is one of the most common causes of bovine abortion, especially […]

Gray wolf (Canis lupus) is a natural definitive host for Neospora caninum

J.P. Dubey, M.C. Jenkins, C. Rajendran, K. Miska, L.R. Ferreira, J. Martins, O.C.H. Kwok, S. Choudhary Abstract The gray wolf (Canis lupus) was found to be a new natural definitive host for Neospora caninum. Neospora-like oocysts were found microscopically in the feces of three of 73 wolves from Minnesota examined at necropsy. N. caninum-specific DNA […]

Neospora Caninum

1. Gray wolf (Canis lupus) is a natural definitive host for Neospora caninum 2. Coyotes (Canis latrans) are definitive hosts of Neospora caninum 3. Overview of Neosporosis 4. Neospora caninum is heartbreaker for cow/calf operators 5. A Serological Survey of Infectious Disease in Yellowstone National Park’s Canid Community