Lecture 23: tapeworm disease II

Question 1

Tapeworms acquired by ingesting metacestodes in free living mites generally infect where in body and what species

Answer 1

SI, bile ducts, pancreatic ducts of ruminants and equids

Question 2

What species does Moniezia expansa typically infect

Answer 2

Sheep

Question 3

M. Expansa infection typically is asymptomatic but serve infection can result in what

Answer 3

GI disturbances, diarrhea, poor growth, intestinal impactions

Question 4

What species does M. Benedeni typically infect

Answer 4

Cattle

Question 5

How do you dx Moneizia tapeworms

Answer 5

Fecal float, proglottids in feces

Question 6

What is the treatment for Moniezia tapeworms

Answer 6

Fenbendazole, albendazole, oxfendazole

Question 7

The following tapeworm was obtained from sheep feces. Lamb presented for poor growth and diarrhea. What parasite is this

Answer 7

M. Expansa

Question 8

What species does Thysanosoma actinioides typically infect and where

Answer 8

Bile, pancreatic ducts, and duodenum of sheep

Question 9

How do you dx T. Actinoides

Answer 9

Fecal float, ID proglottids

Question 10

What is the tx for T. Actinoides

Answer 10

Albendazole, fenbendazole

Question 11

the following was obtained from sheep. Left image shows bile duct infected with parasite. What is it

Answer 11

T. Actinoides

Question 12

What species and where does Anaplocephala magna infect

Answer 12

SI of horses

Question 13

T or F: A. Magna causes severe disease

Answer 13

False

Question 14

What species and where does A. Perfoliata infect

Answer 14

Cecum and distal ileum of horses

Question 15

What tapeworm typically causes colic in horses

Answer 15

A. Perfoliata

Question 16

Horse presents for diarrhea, weight loss, anemia, ileal impaction and ulceration. What parasite is it likely infected with

Answer 16

A. Perfoliata

Question 17

The following was obtained from horse with an ileal impaction. What parasite is this

Answer 17

A. Perfoliata

Question 18

What is the tx for A. Perfoliata

Answer 18

Praziquantel and pyrantel pamoate

Question 19

What species does Dibothrioceohalus latus typically infect and where

Answer 19

SI of dogs and cats

Question 20

What is the first intermediate host for D. Latus

Answer 20

1. Copepod crustacean

Question 21

what is second intermediate host for D. Latus

Answer 21

Small fish

Question 22

what is paratenic host for D. Latus

Answer 22

Predatory fish

Question 23

Dog presents with vomiting, diarrhea, and weight loss. Owner noticed chains of white material in vomit and feces Dog lives on a lake. What parasite is this

Answer 23

D. Latus

Question 24

How can you dx D. Latus

Answer 24

1. Fecal sedimentation
2. Id proglottids
3. Chains of senile proglottids in feces or vomit

Question 25

Dog/cat presents for vomiting and diarrhea. Owner brings these “white chains” into office. What parasite is causing this infection and what are the “white chains”

Answer 25

D. Latus White chains are proglottids

Question 26

What species does spirometra mansonoides typically infect and where

Answer 26

SI of Cats and dogs

Question 27

What is the first intermediate host of S. Manonoides

Answer 27

Copecod crustacean

Question 28

What is second intermediate host for S. Manonoides

Answer 28

Non-fish vertebrate

Question 29

What is paratenic host for S. Mansonoides

Answer 29

Predator of 2nd intermediate host

Question 30

following is an image of cat jejunum. Cat lived near body of water and actively hunted. What parasite is this

Answer 30

S. Mansonoides

Question 31

How can you dx S. Mansonoides

Answer 31

1. Fecal float 2. ID proglottids 3. Chains of proglottids in feces or vomit

Question 32

What is used to tx S. Mansonoides

Answer 32

Praziquantel