Toxoplasmosis and Giardia Flashcards
What parasite causes toxoplasmosis
Protozoan Toxoplasma gondii
Toxoplasmosis Definitive host
Intestinal coccidian parasite of cats
Toxoplasmosis Intermediate host
Warm-blooded vertebrates
rats, small birds
How can people become infected with toxoplasmosis?
Accidental ingestion of oocytes after cleaning the litter box
Accidental ingestion of oocytes in contaminated soil
Drinking contaminated water
Giardia (Giardia spp) Host
Dog, cat, cow, horse, bird
Giardia Trophozoite
Motile feeding stage
dorsoventrally flattened
Four pairs of flagella
Two nuclei and an adhesive disc (runs down the center)
“Falling leaf” motility pattern
Giardia Routes of transmission
- Fecal oral
- Animal to human
- Accidental ingestion of cysts after cleaning the litter box
- Accidental ingestion of cysts after touching or ingesting anything that has encountered dog feces
- Accidental ingestion of cysts in contaminated soil
- Drinking contaminated water
Giardia Clinical signs
Diarrhea with gas and bloating
Tritrichomonas foetus
Infects the reproductive tract of cattle
Resides in the bull’s prepuce and transmitted to the female’s vagina, cervix
What does Tritrichomonas foetus cause?
Causes infertility, pyometra, abortion in cattle