Lecture 42 - Cestodes 2 Flashcards
What is the intermediate host of dipylidium caninum
fleas & lice
dipylidium caninum is also known as
tapeworms
T/F: D. caninum does not cause pathology
TRUE
what are clinical signs of D. caninum
- segments passed in stool
- observation of fleas
how is D. caninum diagnosed
segment squash
how should D. caninum be treated
praziquantel or epsiprantel
T/F: there is not reported tapeworm resistance to dewormers
FALSE
match the tapeworm spp. to its prepatent period
a. Taenia psiformis
b. Taenia taeniaeformis
c. Dipylidium caninum
- 21 days
- 56 days
- 40 days
a = 2
b = 3
c = 1
What is the definitive host and intermediate host of Anocephala perfoliata
DH = equids (ileocecal junction)
IH = pasture mites
T/F: A. perfoliata is zoonotic
FALSE
describe the pathology of A. perfoliata
- ulceration & inflammation of mucosa
- low bowel wall rupture
- intussusception of ileum into cecum
how is A. perfoliata diagnosed
- Fecal centrifugation
- serum ELISA
- Saliva ELISA
what two dewormers can be used in horses to treat A. perfoliata
pyrantel and praziquantel
what is the definitive and intermediate host of moniezia
DH = ruminants (small intestine)
IH = pasture mites
T/F: moniezia is considered non-pathogenic
TRUE
how is moniezia diagnosed
- segments (individual or in groups) in feces
- ova found in FEC/McMasters
what are definitive, 1st intermediate, 2nd intermediate, and paratenic hosts of spirometra spp.
DH = dogs, cats, raccoon, bobcat, fox, etc.
1H = copepod
2H = tadpole/frog
PH = snake, rodent, humans
describe the lifecycle of spirometra spp.
- ova released in feces
- free-swimming coracidium ingested by 1H
what is the pathology of spirometra spp.
- proliferative sparganosis
- adults in small intestine cause enteritis with intermittent D+
how is spirometra diagnosed?
- fecal sediment
- fecal smear
- segments in feces
T/F: spirometra is zoonotic
TRUE
