Sarcocystis Flashcards

0
Q

Both uses man as host and asexual development occurs in the intestine

A

S. sulhominis

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1
Q

Found in cattle and swine

A

S hominis

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2
Q

Accidental intermediate host is man and asexual development

A

S. ilndemani

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3
Q

S. ilndemani development occurs

A

Vascular endothelial cells
Skeletal muscle fibers
Cardiac muscle fibers

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4
Q

Sarcocystis

The transfer stage from final host is

A

Sporocyst containing 4 sporozoites

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10
Q

Sarcocystis hominis

Source

A

Human fecal contamination of food and drinks

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11
Q

Sarcocystis hominis

In human it is a acquired thru eating of

A

Uncooked beef

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12
Q

Sarcocystis hominis

Susceptibility is not universal, sporocyst usually passed in stools for__________ without infection

A

9-179 days

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13
Q

Sarcocystis hominis

The proliferative stage in calves are

A

Slightly pathogenic

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14
Q

Sarcocystis hominis

The cyst stage is essentially

A

Non pathogenic

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15
Q

Sarcocystis hominis

Slightly pathogenic

A

Sporogenic stage

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16
Q

Sarcocystis hominis

Prognosis

A

Self limited

Asymptomatic

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17
Q

Sarcocystis sulhominis

Intermiediate host

A

Pig

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18
Q

Parasitic stage in humans

A

Sporocyst

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19
Q

Sarcocystis sulhominis

Proliferative stage in the vascular endothelial cells is

A

Highly pathogenic

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20
Q

Sarcocystis sulhominis

Sarcosyst positive in pigs for atleast

A

7months

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21
Q

Sarcocystis sulhominis

Sign and symptoms appear after ingestion of pork

A

6-24 hours

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22
Q

Sarcosystis lindemani

AKA

A

Human sarcocystosis

Sarcosporidosis

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23
Q

Sarcocystis sulhominis

Diagnosis

A

Demo of sporocystin feces
Zinc SO4 centrifugal floataion
IF serological test

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24
Q

Sarcocystis lindemani

Sarcocyst is found in either ___________ but nit in both

A

Skeletal

Cardio muscle

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25
Q

Sarcocystis lindemani

Found in skeletal muscle

A

4 distinct types

26
Q

Sarcocystis lindemani

Final host

A

Carnivorous mammal

27
Q

Toxoplasma

7species 5 found in

A

Reptiles and amphibians

28
Q

Toxoplasma

6th sp

A

T. Hammondi

Found in cats and mice

29
Q

Toxoplasma

Life cycle produce ______ each with ________

A

2 sporocysts

4 sporozoites

30
Q

Toxoplasma

Cycle can be _________

A

Heteroxenous

Monoxenous

31
Q

Toxoplasma

Definite host always a

A

Felid

32
Q

Toxoplasma

Intermediate host which is a

A

Bird or mammal

33
Q

Toxoplasma

5 stages are noted in

A

Cats

34
Q

Toxoplasma

Intermdeiate host

A

Rats
Mouse
Birds

35
Q

Toxoplasma

Represent important source of infection

A

Soil

36
Q

Toxoplasma

Important reservoir

A

Rodents

Mouse

37
Q

Toxoplasma

Increased infection in newborn by

A

Transplacental
2nd 3rd trim
From primary infection of asymptomatic mother

38
Q

Toxoplasma

May have no ss of congenital infection but CNS ss may

A

Appear years later

39
Q

A thypus like exanthematous form of disease

A

Toxoplasmosis

40
Q

Toxoplasmosis may produce

A

Myocarditis
Meningoencephalitis
Typical pneumonia
May also cause CNS involvement

41
Q

Toxoplasmosis non genital infection in the form of

A

Retinochoroiditis

42
Q

Toxoplasma

Diagnosis

A

Smears of LN, BM, brain and body fluids

43
Q

Toxoplasma

After 7-10 days, the peritoneal fluids and smear of______, _____,_______ may be examined for proliferative forms

A

Lung
Spleen
Liver

44
Q

Toxoplasma

Serology test

A

Sabin -feldman

45
Q

Toxoplasma

A high Igm

A

Indirect immunodeppressant AB tesa

46
Q

Toxoplasma

Treatment

A

No satisfactory treatment
May use

Pyrimethamine
Sulfonamides

47
Q

Toxoplasma

Tx of retinochoroiditis

A

Clidamycin
Sulfadiazine

Steroid is contraindicated

48
Q

Toxoplasma

Prognosis

A

Fatal in children

Depends on the site of tissue damage

49
Q

Toxoplasma

Freshky passed oocyst are

A

Not infective

50
Q

Toxoplasma

Ripe oocyst will remain

A

Infective for at least a year

51
Q

Toxoplasma

2 stages in

A

Man or other mammals and birds

52
Q

Toxoplasma

Proliferative stage
Early acute stage of infection

A

Intracellular trophozoite

53
Q

Toxoplasma

Found in during chronic or latent infection

A

Encysted form

54
Q

Toxoplasma

When a chronically infected mouse with cyst in its tissue is fed to a cat, oocyst are shed in the cats feces after

A

Only 3-5 days

55
Q

Toxoplasma

Acquired thru

A

Transplacental means
Organ transplant
Immunosuppressive patients