Card Set Information
__ these are not worms, but are instead free-living organisms (mostly one cell), a few of which may live in the bodies of mammals causing disease.
What are some diseases associated with protozoans?
__ live in the blood, lymph and tissue spaces and are transmitted indirectly by blood sucking flies
__ live in the intestinal tract and genital tract and are spread directly through the feces or genital discharges
__ the disease regardless of species is referred to as African Sleeping Sickness
Trypanosoma is the disease regardless of species is referred to as __
African Sleeping Sickness
__ effects ruminants in south africa causing Nagana using the Tsetse fly as the intermediate host between wild and domestic cattle
_ no intermediate host (unique), uses direct sexual contact in horses causing Dourine.
Trypanosoma brucci effects ruminants in south africa causing:
This hemoflagellate uses the Tsetse fly as the intermediate host between wild and domestic cattle...
Trypanosoma equiperdum has no intermediate hose(unique), uses direct sexual contact in horses causing__
Dourine "Silver Dollar"
__ this parasite lives in the cecum and colon multiplying in fluid feces and often are blamed for the diarrhea
__ is common in women but is not considered a pathogen
Trichomonas is also seen with bacteria in __ producing pyorrhea and gingival problems
Sporozoa has two classes of blood causing hemolytic anemia:
__ is a mucoflagellate of interest and are very host specific often resulting in superparasitism.
What are the three Oocyst:
Eimeria- farm animals
Isospora- dogs, cats, swine and small companion pets
Toxoplasma- all domestic animals
Coccidian Life Cycle
Sporozite are swallowed and invade cells of mucosa and divide to form Merozoites
Merozoites leave the cells and enter new cells and develop into Male/Female Gamonts
Gamonts mature to Macrogametes
The male Macrogamete divides into the Microgamete which fertilize the female Macrogametes
The female Macrogamets give rise to Zygotes
As food materials accumulate around the zygote, it becomes in Oocyts
The oocyts are released at death of mucosa cell
What is the Review of the Coccidian life cycle?
IN THE HOST
4. Macrogamete and Microgamete
7. Oocyst 8. Sporocysts 9. Sporozoite
__ simplest of the Genuses found in farm animals and in birds. Direct life cycle
__ found in the dog, cat, swine and pocket pets
Life cycle is direct or indirect through sporozoite infected mice that serve as faculative host for __
__ sporozoites of __ utilize the direct and indirect means, with the indirect means being far more complex than with Isospora genus
Lifecycle of Toxoplasma:
eggs pass from the cat
oocysts, sporocysts, or sporozoites are picked up by intermediate
sporozoites (or sporocysts) will migrate into the tissues of the intermediates and become encysted or pass to the placenta in the human and cause abortions
cat eats the intermediate and picks up the sporozoite from the intermediate, thus completing the life cycle
__ felidae (family) is the definitive host, all other domestic and non-domestics serve as intermediates
__ is an ubiquitous protozoan parasite infects virtually all warm-blooded vertebrates (cats are the definitive host)
It is estimated that up to __% of people possess circulating antiboides to Toxoplasma gondii worldwide, implying either active parasite infection or prior exposure
in immunocompetent people, toxoplasmosis is either an inapparent __ or brief flulike illness
People with a brief flulike illness caused from Toxoplasma gondii often present what other signs:
Cats with Toxoplasma present what signs: