Cystoisospora suis (Apicomplexans)

Question 1

DH

Answer 1

Neonatal swine, dogs and cats

Question 2

IH

Answer 2

May have paratenic host (rodents)

Question 3

Type of life cycle

Answer 3

Facultatively heteroxenous – meaning they infect more than one host (indirect)

Question 4

Oocyst is

Answer 4

unsporulated and shed in feces

Question 5

SPORULATION OCCURS WHERE

Answer 5

OUTSIDE OF HOST

Question 6

ingested by ____ ______, sporozoites invade extraintestinal sites. Develop into _____ ________ (IN PARATENIC HOST ONLY)

Answer 6

paratenic host; MONOZOIC CYSTS

Question 7

Sporulated oocyst, definitive host ingests paratenic host with ____ _____

Answer 7

monozoic cysts

Question 8

Two sporocysts, each with how many sporozoites?

Answer 8

four

Question 9

Sporozoites invade what cells?

Answer 9

intestinal cells

Question 10

Merogony/schizongony-

Answer 10

schizont/merozoite

Question 11

Gametogony

Answer 11

fertilization, oocyst (unsporulated), passed in the feces

Question 12

Monoxenous (direct) lifecycle

Answer 12

oocysts are unsporulated and shed in feces> sporogony -> sporulates OUTSIDE of host

Question 13

sporulated occysts are ingested by __

Answer 13

DH

Question 14

Sporozoites- invade the ____ cells

Answer 14

intestinal

Question 15

Merogony/ Schizongony (schizonts) have multiple generations of _____ produced

Answer 15

merozoites

Question 16

Oocysts are passed in ___

Answer 16

feces

Question 17

PH is found in

Answer 17

extra intestinal cells

Question 18

Route of infection:

Answer 18

Facultatively heteroxenous life cycle with fecal to or transmission OR carnivorism

Question 19

PPP; when are the oocysts shed?

Answer 19

5 days, oocysts are shed in 1-3 weeks

Question 20

Pig clinical signs

Answer 20

neonatal porcine coccidosis

stools are pasty yellow diarrhea that becomes fluid after a few days

Question 21

are the stools also bloody?

Answer 21

rarely

Question 22

Fecal exam is done to see ___ hour sporulation of oocysts

Answer 22

48

Question 23

fecal float seeing the sporulated oocysts at 48 hours will help differ it from ___ spp. and _____ spp.

Answer 23

Eimeria spp. And Cystoisospora in pigs – Cystoisospora = 2 sporocysts each with 4 sporozoites

emieria has 4 sporocysts with 2 sporozoites

Question 24

Dog clinical signs:

Answer 24

GI signs and fecal exam used: sporulation 16 hours in 30-37 degrees C

Question 25

Cat clinical signs:

Answer 25

Gi signs and do fecal exam: sporulation at 16 hours in 30-37 degrees C