Infectious Stages Flashcards

1
Q

Giardia

A

cysts

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2
Q

Cystoisospora

A

sporulated oocyst

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3
Q

sarcocystis

A

intermediate host ingests sporocyst
definitive host ingests sarcocyst

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4
Q

hepatozoon americanum

A

tick with oocysts

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5
Q

toxoplasma gondii

A

bradyzoites/sporulated oocyst

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6
Q

neospora caninum

A

sporulated oocysts

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7
Q

dipylidium caninum vector and infectious stage

A

vector (arthropod - flea)
cysticercoid

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8
Q

taenia spp.

A

larval cysts

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9
Q

Dioctophyma renale

A

ingestion of egg in paratenic or intermediate host

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10
Q

Dirofilaria immitis

A

vector (mosquito) with L3

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11
Q

spirocerca lupi

A

ingestion of L3

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12
Q

strongyloides sercoralis

A

infectious L3 via soil/water
transmammary infection (dogs)

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13
Q

trichuris vulpis “whipworm”

A

ingestion of egg

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14
Q

tritrichomonas foetus

A

oocysts

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15
Q

toxocara canis “round worm”

A

ingestion egg with L3
prenatal/transplacental of L3

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16
Q

toxocara cati “round worm”

A

ingestion of L3
prenatal/transplacental of L3
transmammary of L3

17
Q

toxascaris leonina “round worm”

A

ingestion of egg with L2 or paratenic host with L3
no migration

18
Q

Ancylostoma spp. & Uncinaria spp. “hookworms”

A

penetration of skin of L3
ingestion of L3 from environment, paratenic host or milk
transmammary of L3