Sarcocystis cruzi (Apicomplexans)

Question 1

Zoonotic potential?

Answer 1

Yup.

Question 2

DH

Answer 2

dogs, wolves, coyotes, foxes, etc. (predators)

Question 3

IH

Answer 3

cattle, ox, bison (prey species)

Question 4

_____ Life cycle

Answer 4

indirect

Question 5

in DH: Ingestion of IH tissue and digestion of _____ with ____ causes gametogony for male and female gametes> fertilization

Answer 5

Sarcocysts with bradyzoites

Question 6

oocysts are sporulated where

Answer 6

in the host

Question 7

In DH: After sporulization, the oocysts are passed in the feces into enviornment for what to occur next?

Answer 7

for sporogony of sporulated oocyst to sporocysts !!!

Question 8

DH does NOT have ____ but DOES have ______

Answer 8

merogony; gametogony

Question 9

IH DOES NOT have _____ but does have _____

Answer 9

Gametogony but DOES have merogony

Question 10

IH: Ingested sporocysts from the environment leads to

Answer 10

extraintestinal excystation of sporozoite

Question 11

Infectious stage of DH:

Answer 11

sarcocyst with bradyzoites

Question 12

infectious stage of IH:

Answer 12

Oocyst/sporocyst

Question 13

DH: Ingestion of ___ ____ (sarcocysts containing bradyzoites)
IH: Ingestion of ____/____ in the environment

Answer 13

tissue cyst; oocysts/sporocysts

Question 14

PPP

Answer 14

7-14 days

Question 15

Clinical signs for DH

Answer 15

asymp., no immunity, FREE SPOROCYSTS on the fecal float

Question 16

Clinical signs for IH

Answer 16

Acute anorexia, pyrexia, anemia, weight loss, abortion in the final trimester, presence of SARCOCYST on histo

Question 17

So we see ______ ____ on fecal floatation and _____ on histo

Answer 17

Free sporocysts; Sarcocyst

Question 18

Another clinical sign, but in cattle!!

Answer 18

Abortions in cattle