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Parasitology > Canine/Feline- Giardia, Trypanosoma, Cystoisospora and Toxoplasma > Flashcards

Canine/Feline- Giardia, Trypanosoma, Cystoisospora and Toxoplasma Flashcards

1
Q

What is Giardia intestinalis Hosts?

A

dogs, cats, cattle………..humans?

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2
Q

What is Giardia intestinalis Identification?

A

trophozoites- 21 μm

cysts- 12 μm

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3
Q

What is Giardia intestinalis Site(s) of infection?

A

small intestine

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4
Q

What is Giardia intestinalis Pathogenesis and lesions?

A

asymptomatic, trophozoites can cause acute focal inflammation

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5
Q

What is Giardia intestinalis Clinical signs?

A

none, to acute or chronic diarrhea

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6
Q

What is Giardia intestinalis Diagnosis?

A

fecal smear demonstrates cysts and trophozoites (if feces are unformed); fecal flotation with zinc sulphate; ELISA

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7
Q

What is Giardia intestinalis Treatment and prevention?

A

parasiticides (benzimidazoles) and hygiene

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8
Q

What is Trypanosoma cruzi Hosts?

A

Final hosts include dogs, cats, humans

Reservoir hosts are many species, wild and domestic

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9
Q

What is Trypanosoma cruzi Identification?

A

elongated

trypomastigote in blood smear

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10
Q

What is Trypanosoma cruzi Site(s) of infection?

A

muscle and blood

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11
Q

What is Trypanosoma cruzi Pathogenesis and lesions/Clinical signs?

A

acute and chronic cardiac disease. Chagas’ disease. Puppies and kittens most susceptible

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12
Q

What is Trypanosoma cruzi Diagnosis?

A

trypomastigote in blood smear. Xenodiagnosis or serological tests confirming infected animal

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13
Q

What is Trypanosoma cruzi Treatment and prevention?

A

no satisfactory treatment known

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14
Q

What is “Coccidiosis”?

A

infection with Cystoisospora, Isospora and/or Eimeria

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15
Q

Coccidian parasites are members of of what order?

A

Eucoccidiorida

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16
Q

What is Cystoisospora (Isospora) canis Hosts?

A

Hosts: final hosts are dogs. Paratenic hosts include rodents

17
Q

What is Cystoisospora (Isospora) canis Identification?

A

argest, 50 μm

18
Q

What is Cystoisospora (Isospora) canis Site(s) of infection?

A

small intestine

19
Q

What is Cystoisospora (Isospora) canis Pathogenesis and lesions/Clinical signs?

A

small intestinal cells destroyed. Diarrhea can be

severe, watery, profuse and bloody. Young dogs susceptible

20
Q

What is Cystoisospora (Isospora) canis Diagnosis?

A

oocyst, smaller than ascarid eggs (80-100 μm) and

larger than Sarcocystis spp (18 μm)

21
Q

What is Cystoisospora (Isospora) canis Treatment and prevention?

A

management is critical

22
Q

What is Toxoplasma gondii Hosts?

A

final host is cat and other felids. Intermediate hosts
include humans, warm blooded animals.
Zoonosis

23
Q

What is Toxoplasma gondii Identification?

A

oocysts in fecal examination of cat

24
Q

What is Toxoplasma gondii Felid infection?

A

Cats eating infected animals (rodents)

Direct transmission of oocysts

25
Q

What is Toxoplasma gondii Human infection?

A

Foodborne
Animal to human
Mother to child

26
Q

What is Toxoplasma gondii Site(s) of infection

A

both intestinal and extraintestinal cells (muscle, liver, lung, brain, etc)

27
Q

What is Toxoplasma gondii Pathogenesis and lesions/Clinical signs?

A

most animals asymptomatic. Clinical disease

in cat occurs. Depends on organs involved and extent of cells infected. Acute toxoplasmosis. Severe seen with FIV

28
Q

What is Toxoplasma gondii Diagnosis?

A

oocysts in cat feces. Serological tests are modified
direct agglutination, ELISA and IFA
Cats develop immunity after initial infection and shed only once in a lifetime – for 1-2 weeks

29
Q

What is Toxoplasma gondii Treatment and prevention?

A

Humans should avoid contact with feces from felid host
Humans should avoid undercooked meat from intermediate host
Pregnant women avoid contact with sources of oocysts
Nonsulfonamides and sulfonamides are used

Parasitology (23 decks)

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