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Lab techniques 2 > Obligatory Myiasis > Flashcards

Obligatory Myiasis Flashcards

1
Q

What is the definitive host of Cuterebra spp?

A

Rodents and rabbits

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2
Q

What is the common name of Cuterebra spp?

A

Rodent bot fly

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3
Q

What is the predilection site of Cuterebra spp?

A

SQ tissue

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4
Q

What is the route of transmission of Cuterebra spp?

A

Enters via body opening

oral, nasal, ocular, open wound

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5
Q

What is the pathogenesis of Cuterebra spp?

A

Feline Ischemic encephalopathy

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6
Q

How do you treat a Cuterebra infestation?

A

Removal of larvae

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7
Q

What species are considered the accidental host of Cuterebra spp?

A

Dogs
Cats
Humans

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8
Q

Why should Cuterebra spp be removed with caution?

A

Because it can cause anaphylaxis

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9
Q

What is the definitve host of Hypoderma spp?

A

Cattle

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10
Q

What is the common name of Hypoderma spp?

A

Warble fly, Heel fly, Gad fly

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11
Q

What are the clinical signs of Hypoderma spp?

A

“Warbles” with 5 breathing holes present dorsal to lumbar spine

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12
Q

What pathogenesis does Hypoderma spp cause?

A

Bovine hypodermosis

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13
Q

How do you diagnose Hypoderma spp?

A

ID of third larval stage

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14
Q

Is Hypoderma spp zoonotic?

A

Yes, it causes a similar cutaneous larva migrans and eosinophilic syndrome with fever, muscle pain

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15
Q

What is the definitive host of Gasterophilus spp?

A

Horses

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16
Q

What is the common name of Gasterophilus spp?

A

Equine Botfly

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17
Q

What is the predilection site of Gasterophilus spp?

A

Oral cavity, then relocate to stomach

18
Q

What pathogenesis does Gasterophilus spp cause?

A

Horse gastrointestinal myiasis

19
Q

How do you treat Gasterophilus spp?

A

Ivermectin

20
Q

Is Gasterophilus spp zoonotic?

A

Yes. It causes stripes on skin resembling cutaneous larva migrans

21
Q

What is the definitive host of Ctenocephalides felis?

A

Cats
Dogs
Ferrets and small wild mammals

22
Q

What is the common name of Ctenocephalides felis?

A

Cat flea

23
Q

What pathogenesis does Ctenocephalides cause?

A

Diplyidium caninum
Pruritus
Plague
Acanthocheilonema reconditum

24
Q

How do you treat Ctenocephalides felis?

A

Products that contain Insect growth regulators

(Frontline plus, K9 Advantix

25
Q

Are Ctenocephalides felis zoonotic?

A

Yes they bite humans

26
Q

What is the predilection site of Ctenocephalides felis?

A

Tail head, neck, flanks

27
Q

What are the clinical signs of Ctenocephalides felis?

A

Anemia, alopecia, dermatitis

28
Q

How do you diagnose Ctenocephalides felis?

A

The presence of flea dirt and identification of fleas

29
Q

What is the most common flea of dogs and cats?

A

Ctenocephalides felis

30
Q

What is an infestation of fleas called?

A

Siphonapterosis

31
Q

What is the definitive host of Ctenocephalides canis?

A

Dogs

32
Q

What is the common name of Ctenocephalides canis?

A

Dog flea

33
Q

What pathogenesis does Ctenocephalides canis cause?

A

Dipylidium caninum
Plague
Acanthocheilonema reconditum

34
Q

What is the definitive host of Echidnophaga gallinacean?

A

Poultry
Dogs
Cats

35
Q

What is the common name of Echidnophaga gallinacean?

A

Sticktight flea

36
Q

What pathogenesis does Echidnophaga gallinacean cause?

A 
Murine typhus
Secondary bacterial infections 
Skin ulceration
Anemia
The plague
37
Q

What is the bacteria that causes the plague?

A

Yersinia pestis

38
Q

Is Echidnophaga gallinacean zoonotic?

A

Yes. Cases of attachment to a human are scarce

39
Q

What are the clinical signs of Echidnophaga gallinacean in birds?

A

Causes the eyes to swell shut

40
Q

What species of flies are considered to be obligatory myiasis?

A 
Screw worm
Cuterebra spp
Hypoderma spp
Gasterophilus spp
Nasal bot fly
41
Q

What is an infestation of dipteran larvae known as?

A

Myiasis

Lab techniques 2 (38 decks)

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