Exam III - Toxoplasma gondii Flashcards Preview

RUSVM Parasitology > Exam III - Toxoplasma gondii > Flashcards

Flashcards in Exam III - Toxoplasma gondii Deck (12)
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1
Q

Toxoplasma gondii causes abortion in what trimester of the IH’s?

A

3rd trimester in humans & warm blooded animals

2
Q

what stage is used for ID?

A

oocyst in feces

3
Q

how many sporocysts &sporozoites are found in Toxoplasma gondii?

A

2 sporocysts 4 sporozoites

4
Q

what is the site of infection for the final host of Toxoplasma gondii?

A

small intestine

5
Q

what is the site of infection for the IH of Toxoplasma gondii

A

musles liver lung and brain

6
Q

what is the pathogenisity of the IH for Toxoplasma gondii?

A

cyst is pathogenic in some organs like the brain n liver but otherwise asymtomatic

7
Q

Toxoplasma gondii can cause clinical signs in the final host if the FH is?

A

immunodificient

ie FIV or FeLV

8
Q

DX of Toxoplasma gondii is made by ?

A

serology testing or oocyte in feces.

9
Q

how many times can a cat be infected with Toxoplasma gondii and how long will the host shed eggs for?

A

once only = builds immunity with age

  • egg shedding will occur for only 2 weeks
10
Q

what is the most common way for a human to become the IH of Toxoplasma gondii?

A

eating under cooked pork or lamb

11
Q

if sheep in goat become the IH for Toxoplasma gondii what is the site of infection and what is the pathology?

A

more pathogenic in these hosts and causes abortions in the sheep -with heavy infection necrosis of vital organs can be seen on necropsy

  • white foci will be found on placenta and aborted fetuses
12
Q
A

Decks in RUSVM Parasitology Class (124):