Cestodes

Question 1

What is necessary for a cestode to complete its like cycle?

Answer 1

Intermediate host

Question 2

Dipylidium caninum

Answer 2

lice and flea tapeworm

Question 3

what can dipylidium caninum cause? (2)

Answer 3

1. Malnutrition

2. perianal irritation

Question 4

Taenia pisiformis

Answer 4

rodent and rabbit tapeworm

Question 5

what can taenis pisiformis cause in the host? (3)

Answer 5

1. diarrhea
2. intestinal obstruction
3. damage to intermediate host

Question 6

Hydatid disease

Answer 6

the ingestion of tapeworms

Question 7

what is the causative organism for hydatid disease

Answer 7

Echinococcus granulosus

Question 8

What can hydatid disease cause in humans?(2)

Answer 8

1. asymptomatic

2. presents like a slow growing tumor in an internal organ

Question 9

where are there high accurances of hydatid disease? (2)

Answer 9

1. Rural areas of northern hemisphere

2. Sheep-raising areas of the SW U.S.

Question 10

what is the treatment for hydatid disease?(2)

Answer 10

1. Antiparasitics

2. surgical resection of cyst

Question 11

Cysticercosis

Answer 11

formation of a cyst outside of the GI

Question 12

Taeniasis

Answer 12

Tapeworm infection acquired from eating infected beef or pork

Question 13

what are the causative organisms for taeniasis?(2)

Answer 13

1. Taenia saginata

2. Taenia solium

Question 14

what health issues in humans can be caused by teaniasis?(4)

Answer 14

1. usually asymptomatic
2. perianal irritation common
3. weight loss, abdominal pain, GI disturbances
4. Cysticercosis

Question 15

the definitive host with teaniasis?

Answer 15

humans

Question 16

the definitive host with hydatid disease?

Answer 16

Canine

Question 17

taenia solium

Answer 17

Pork

Question 18

taenia saginata

Answer 18

beef

Question 19

Incubation period for Teaniasis?

Answer 19

8 - 14 weeks

Question 20

mortality with Teaniasis?

Answer 20

cysticerocosis possibly fatal with out treatment

Question 21

common occurrences with Teaniasis?(2)

Answer 21

1. Places where beef or pork is eaten raw or undercooked

2. Places where pigs and cattle are permitted access to human feces

Question 22

how is Teaniasis transmitted?(2)

Answer 22

1. Ingestion of cysticerci in raw or undercooked beef or pork
2. Ingestion of Taenia solium leading to cysticercosis in humans

Question 23

what is the diagnosis for Teaniasis?(3)

Answer 23

1. Proglottids in stool
2. fecal flotation
3. serology

Question 24

How is Teaniasis treated ? (2)

Answer 24

1. Antiparasitics

2. surgical resection of cysticerci

Question 25

How to control and prevent Teaniasis? (4)

Answer 25

1. Prevent contamination of swine/cattle feed w/ human feces
2. Cook meat well or freeze it (for at least 4 days) before eating
3. Personal hygiene
4. Don’t fertilize gardens w/ human waste

Question 26

Diphyllobothriasis

Answer 26

Tapeworm infection acquired by eating infected raw fish

Question 27

what are is the causative organism for Diphyllobothriasis?

Answer 27

Diphyllobothrium spp.

Question 28

what syndromes can Diphyllobothriasis cause in humans?

Answer 28

1. asymptomatic
2. diarrhea, vomiting, anorexia, nausea, wt. loss, craving for salt
3. anemia
4. intestinal obstruction

Question 29

Incubation period of Diphyllobothriasis?

Answer 29

3 - 6 weeks

Question 30

how is Diphyllobothriasis transmitted?

Answer 30

human consumption of infected raw or undercooked fish

Question 31

how is Diphyllobothriasis diagnosed? (3)

Answer 31

1. proglottids in stool
2. fecal float
3. CBC

Question 32

How is Diphyllobothriasis controled and how can you prevent it?

Answer 32

Cook fish well or freeze it before eating

Prevent fecal contamination of water

Question 33

what is the treatment for Diphyllobothriasis?

Answer 33

antiparasitics