Parasitology Quiz 2

Question 1

What animals is the trypomastigote form found of hemoflagellates?

Answer 1

mammalian hosts

Question 2

What forms are found in the intermediate hosts of hemoflagellates?

Answer 2

epimastigote

metacyclic trypomastigote

Question 3

What transforms into a promastigote form after ingestion by the intermediate host(sandfly)?

Answer 3

amastigote

Question 4

What is a kinetoplast?

Answer 4

extension of mitochondria

Question 5

What is the amastigote form consist of?

Answer 5

remnant of flagella

Question 6

What disease is caused by trypanasomes in humans?

Answer 6

sleeping sickness

Question 7

What disease is caused by Trypanasoma cruzi?

Answer 7

Chaga’s dz

Question 8

What are the intermediate hosts of T. cruzi?

Answer 8

“kissing” bugs

Question 9

What is a chagoma?

Answer 9

inflammatory lesion at site of infection of T. cruzi

Question 10

What is Romana’s sign?

Answer 10

palpebral edema from rubbing T. cruzi in eye

Question 11

How can T. cruzi be transferred between dogs?

Answer 11

transplacental and transmammary

Question 12

What are signs of chronic infection with T. cruzi?

Answer 12

myocardial involvement

Question 13

How is Chaga’s disease diagnosed?

Answer 13

blood smears, tissue culture, xenodiagnosis, ELISA, IFAT, RIPA, PCR, immunohistochemistry

Question 14

What is xenodiagnosis?

Answer 14

diagnosis based on recovery of trypanosomes in bug that fed on animal

Question 15

How is Trypanasoma equiperdum transmitted?

Answer 15

venereal

Question 16

Should T. equiperdum be reported to state authorities?

Answer 16

yes!

Question 17

What are clinical signs of T. equiperdum?

Answer 17

silver dollar plaques on rib skin that last 3 to 7 days

Question 18

How is T. equiperdum treated?

Answer 18

euthanize

Question 19

What are the 3 diseases caused by leishmania?

Answer 19

cutaneous
mucocutaneous
visceral leishmaniasis

Question 20

What causes the diffuse cutaneous leishmaniasis?

Answer 20

immune mediated – immune complex deposition causes vasculitis, arthritis, thrombocytopenia

Question 21

What is the intermediate host for leishmania?

Answer 21

sand fly

Question 22

What is the montenegro test?

Answer 22

leishmania skin test

Question 23

What are the treatments for leishmania?

Answer 23

amphotericin B, antimony compounds, paromomycin

Question 24

What characterizes the phylum apicomplexa?

Answer 24

motile stages with apical complex

Question 25

What disease do intestinal apicomplexas cause?

Answer 25

coccidiosis

Question 26

What intestinal apicomplexa have zoonotic potential?

Answer 26

toxoplasma, sarcocystis, cryptosporidium

Question 27

what is a zoite?

Answer 27

a motile banana/cigar shaped cell (beginning and end point of life cycle)

Question 28

what is a sporozite?

Answer 28

infective forms that are found in sporulated oocysts

Question 29

What is a tachyzoite?

Answer 29

rapidly dividing zoite

Question 30

What are oocysts the result of?

Answer 30

union of microgametocyte and macrogametocyte

Question 31

What is schizogony (merogony)?

Answer 31

multiple internal fission

Question 32

What is a gametogony?

Answer 32

a merozite produced by the final schizogony then enters fresh cell

Question 33

What types of animals does eimeria and isospora cause problems in?

Answer 33

young animals

Question 34

What type of lifecycle does coccidia have?

Answer 34

direct

Question 35

What characterizes eimeria sporulated oocysts?

Answer 35

4 sporocysts with 2 sporozites each

Question 36

What do clinical signs coincide with what part of coccidia life cycle?

Answer 36

gametogony

Question 37

What are the clinical signs of winter coccidiosis?

Answer 37

bloody diarrhea, tenesmus, rectal prolapse

Question 38

What are the clinical signs of goat coccidiosis?

Answer 38

pasty green diarrhea

Question 39

What coccidia parasitizes the renal epithelium of horses and may be pathogenic?

Answer 39

Klossiella equi

Question 40

What are the clinical signs of avian coccidia?

Answer 40

diarrhea, reduced weight gain and egg production

Question 41

What species has a vaccine available for coccidia?

Answer 41

avian

Question 42

What form of coccidia do rabbits get?

Answer 42

liver

Question 43

What is the treatment for rabbit coccidia?

Answer 43

grave prognosis, sulfaquinoloxine and sanitation

Question 44

What characterizes cystoisospora sporulated oocysts?

Answer 44

2 sporocysts, each with 4 sporozoites

Question 45

What are the exceptions to the direct life cycle of cystoisospora?

Answer 45

extraintestinal stages in paratenic hosts | exraintestinal stages in dog, cats and humans

Question 46

What species causes coccidiosis in pigs? At what age?

Answer 46

Isospora suis | neonatal piglets - nursing

Question 47

What is the treatment for swine coccidiosis?

Answer 47

labor intensive

Question 48

What are the clinical signs of coccidiosis in piglets?

Answer 48

pasty to fluid diarrhea | villous atrophy