Toxoplasma gondii and Neospora spp. Flashcards
Is Neospora a type of apicomplexan?
Yes
What are the main aspects of veterinary interest for N. caninum?
Abortions in cattle and neurological disease in dogs
What are the differences between N. caninum and T. gondii?
T. gondii cysts have thinner walls, serum antibodies are different
What is the DH of N. caninum?
Dog (previously coyotes)
What are the IHs of N. caninum?
Cattle, goats, sheep, horses, foxes, dogs
Where is N. caninum located in intermediate hosts?
Tissue cysts found in neural tissue and tachyzoites found in most tissues
What are the signs of a congenital infection in dogs?
Hindlimb paralysis, several littermates affected, bitches can transmit to successive litters
What are the signs of N. caninum in cattle?
Abortions, death, retention and mummified fetuses. Neuromuscular disease in live born calves. Calves may show no signs and pass along to their offspring.
What is used to treat N. caninum in dogs?
Trimethoprim, sulfadiazine, pyrimethamine. No treatment for paralysis.
What is used to treat N. caninum in cattle?
Decoquinate is helpful, but nothing helps in an “abortion firestorm”
What is the problem with vaccinating cattle and sheep?
Cannot differentiate those that were vaccinated from those who were exposed
What does N. hughesii cause?
EPM in horses
What is the life cycle of T. gondii?
TYPE LIFE CYCLE HERE
What is the distribution of T. gondii?
Worldwide
