3305 exam 3

What does the trophozoite do?

What does the cyst/oocyst do?

Why are trophozoite and cyst/oocysts important for transmission?

Transmission: vector-borne vs mechanical

Why do some parasites spread more easily than others?

Why does Giardia cause diarrhea?

Why does Babesia cause anemia?

Why does Cytauxzoon cause severe disease?

Why does tissue protozoa cause abortion or neurologic disease?

Why are intestinal protozoa usually treatable?

Why are systemic protozoa not eliminated?

Why are coccidia controlled rather than cured?

Which protozoa has “falling leaf” motion?

Giardia

Giardia transmission + infective stage

Fecal-oral, cyst

Which protozoa has NO cyst stage?

Tritrichomonas blagburni

Tritrichomonas foetus transmission

Venereal

What does Tritrichomonas foetus cause?

Infertility, abortion in cattle

Amoebic dysentery is caused by?

Entamoeba

Which protozoa is associated with pigs?

Balantidium

Infective stage of coccidia

Sporulated oocyst

Eimeria causes?

Calf scours

Cystoisospora affects who?

Puppies and kittens

Which protozoa causes autoinfection?

Cryptosporidium

Toxoplasma transmission

Predator-prey + fecal-oral

Toxoplasma causes?

Abortion, neurologic disease

Neospora transmission

Predator-prey + transplacental

Neospora causes?

Abortion in cattle

Sarcocystis location

Muscle

Sarcocystis neurona causes?

EPM (neurologic disease in horses)

Babesia infects what cells?

RBCs

Babesia causes?

Hemolytic anemia

Cytauxzoon infects what?

Macrophages + RBCs

Cytauxzoon affects which animal severely?

Cats

Hepatozoon transmission

Tick ingestion

Trypanosoma cruzi causes?

Chagas disease (heart disease)

Trypanosoma evansi causes?

Surra (systemic anemia)

Leishmania lives in?

Macrophages