Neospora

Question 1

What is the main species of Neospora: (1)

Answer 1

Neospora caninum

Question 2

What is the Final host of Neospora caninum:

Answer 2

Dog

Question 3

What are the Intermediate hosts of Neospora caninum: (2)

Answer 3

• Eq
• Bo = can cause abortion

Question 4

Morphology of Oocyst of Neospora caninum:

Answer 4

Has 2 sporocysts with 4 Sporozoites in each

Question 5

Describe the Life cycle of Neospora caninum:

Answer 5

Final host
1. Dog ingests infected tissue with cysts (can cause transplacental transmission- Neurological pathology in puppies)
2. Oocyst is passed in faeces

Intermediate host
1. Cow (or Eq) ingests Oocysts where transplacental transmission occurs and one of three things can happen
-Uninfected calf is born
-Infected calf is born = matures and has calves with one of 3 outcomes
-Aborted calf and placenta occurs (2nd or 3rd trimester) = Infected meat (sometimes used in dog food)