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Parasites > Tapeworms > Flashcards

Tapeworms Flashcards

1
Q

What are the three types of tapeworms

A

Taenia
Dipylidium
Echinococcus

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2
Q

What do tapeworms look like?

A

Head
Neck
Number of segments

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3
Q

Where do tapeworms attach

A

Intestinal wall

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4
Q

What do tapeworms require for transmission

A

Intermediate host

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5
Q

What happens if no intermediate host

A

Transmission or larva stops/fails

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6
Q

What happens if there is an intermediate host?

A

Development of larva occurs

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7
Q

What does each tapeworm segment have

A

Reproductive organs

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8
Q

What is hemaphroditic

A

When eggs are released as segments break off tapeworms

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9
Q

What is a definitive host of a tapeworm

A

Dogs
Cats
Coyotes

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10
Q

What is the intermediate host of a tapeworm

A

Fleas, fish, sheep , pig

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11
Q

Prevention of tapeworms

A

Removal of intermediate hosts

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12
Q

Examples of prevention of tapeworms

A

Flea control
Indoor cats
No hunting
No eating raw meat

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13
Q

Adult larval facts

A

Adults always in definitive host

Adults are not infective to other predators

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14
Q

Intermediate host larval facts

A

Larval only in intermediate host

Larval not invective to other intermediate hosts

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15
Q

How many subspecies in taenia

A 
Many 
Beef
Pork 
Deer 
Sheep 
Rabbits
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16
Q

Where do taenia live

A

Definitive host
Human
Cat
Dog

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17
Q

How to diagnose taenia

A

Fecal samples (see segment of worms/eggs in feces)

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18
Q

Taenia signs

A

May cause no signs

Itchy, intestinal signs

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19
Q

Where do intermediate species ingest eggs

A

Deer
Mice
Cattle
Sheep ingest in environment (immediately infective)

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20
Q

Where do taenia eggs hatch in intermediate host

A

Small intestine

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21
Q

Where do taenia eggs go once they hatch in SI

A

They go into the liver from blood

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22
Q

Where do taenia eggs wait to be eaten by predator

A

Sac in abdominal cavity

23
Q

Is taenia in humans

A

Some species human specific

Humans can be accidental host

24
Q

What is diplydium tapeworm

A

Flea tapeworm

25
Q

Diplydium signs

A

Discomfort
Vomit
Scooting

26
Q

Diplydium definitive host

A

Dogs
Cats
Foxes

27
Q

Where do adult diplydium live

A

SI

28
Q

Where do diplydium eggs go

A

Pass in feces

29
Q

What part of diplydium do you see in feces

A

Diplydium tapeworm segments

30
Q

Diplydium treatment

A

Praziquantel (profender, dolpac, drontal)

31
Q

Diplydium intermediate host

A

Fleas

Lice

32
Q

How do diplydium intermediate hosts ingest eggs

A

Louse and flea larvae ingest eggs

33
Q

How do diplydium definitive hosts get eggs

A

Dogs/cats eat insect and adult larvae form in S I

34
Q

Diplydium and humans

A 
Can infect humans 
Diarrhea 
Itchy bum 
Pain in abdomen 
Diarrhea
35
Q

How do humans get diplydium

A

Swallowing louse and flea

36
Q

Echinococcus symptoms

A

Usually no symptoms unless high numbers

37
Q

How do echinococcus eggs pass

A

Usually in small numbers

Negative test is common

38
Q

Why is it difficult to tell if it is an echinococcus egg

A

Difficult to tell from taenia egg which is more common

39
Q

How to treat echinococcus

A

Praziquantel
Milbemax
Profender
Drontal / dopac

40
Q

How to prevent echinococcus

A

Prevent rodent populations
Prevent eating intermediate host
Don’t eat undercooked meat

41
Q

Echinococcus definitive host

A

Dogs, fox

Sometimes humans

42
Q

How does definitive host get echinococcus

A

Ingesting prey

43
Q

How long can adult form of echinococcus live

A

Up to two years

44
Q

Who is the echinococcus intermediate host

A

Sheep
Voles
Shrew

45
Q

Where do echinococcus eggs once ingested by intermediate

A

Migrate to the lungs and liver

46
Q

What happens when echinococcus eggs are in lungs and liver

A

Large cysts form that contain thousands of infective forms

47
Q

Echinococcus in humans

A

Yes very serious if humans get

48
Q

Echinococcus human cause

A

Contact with eggs (feces)
Intermediate host
Gardening/soil

49
Q

What does echinococcus cause in humans

A

Hydatid disease

Parasite tumors develop in brain liver heart lungs

50
Q

What happens if echinococcus tumors rupture in humans

A

Anaphylacrtic shock

51
Q

Diagnoses of echinococcus

A

CT

MRI

52
Q

Treatment of echinococcus

A

Praziquantel

Surgery

53
Q

Can humans be intermediate hosts of echinococcus

A

Yes

54
Q

Echinococcus prevention

A

Prevent ingestion of intermediate host

Flea control, vermin control, cook meat, wash hands , keep pets on regular deworming

Parasites (13 decks)

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