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Nematodes > Metastrongyles > Flashcards

Metastrongyles Flashcards

1
Q

Metastrongyle life cycle

A

indirect

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2
Q

Is Dictocaulus vivparus a lung worm?

A

Not a metastrongyle

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3
Q

How to diagnose metastrongyles?

A

L1 larvae in Baerman’s test

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4
Q

Metastrongylus in pigs how to diagnose?

A

fecal flotation of the L1s not baerman test

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5
Q

Intermediate host of metastrongylus

A

earthworms

L1 ingested then hatch and mature to L3

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6
Q

Distribution of Metastrongylus spp.

A

Most common in midwest and southeast but has decreased mostly in pigs on pasture

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7
Q

Metastrongylus spp. migration

A

L3 released in SI-> liover -> lung

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8
Q

Metastrongylus pathogenesis

A

pneumonia and secondary infections

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9
Q

Metastrongylus diagnosis

A

fecal float

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10
Q

Muellerius Intermediate host

A

snails and slugs

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11
Q

Muellerius diagnosis

A

finding 1st stage larva in baerman test

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12
Q

Parelaphostrongylus tenius definitive host

A

white tailed deer

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13
Q

Parelaphostrongylus tenius intermediate hosts

A

snails and slugs

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14
Q

Parelaphostrongylus tenius accidental hosts

A

camels, sheep, goats, llamas, horses, wild ruminants

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15
Q

Parelaphostrongylus tenius distribution

A

East of the great plains from gulf of mexico to couthern canadian provinces

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16
Q

Parelaphostrongylus tenius life cycle

A

adults are in meninges of brain

eggs are produced and go into venous circulation where they go to the heart and then the lung where they hatch and are coughed and swallowed then L1 are passed in feces and snail or slug gets infected and they mature to L3

17
Q

Parelaphostrongylus tenius PPP

A

3 months

18
Q

Parelaphostrongylus tenius signs in abnormal hosts

A

rear leg weakness, ataxia, blindness, circling, incoordination

19
Q

Parelaphostrongylus tenius diagnosis

A

no larva in feces of abnormal hosts

mostly ofund in necropsy and hisotpathology in abnormal hosts

L1 in feces of white tailed deer

20
Q

Signs in deer of Parelaphostrongylus tenius

A

very well adapted and don’t show neuro signs

Nematodes (5 decks)

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