Coccidians (Lec) Flashcards

1
Q

Characterized by alternation of generation

A

Coccidians

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2
Q

Occur in either both on the same host/separate

A

Coccidians

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3
Q

In variety of nucleated cells

A

Schizogony (Asexual)

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4
Q

Intestinal mucosa of definitive host

A

Sporogony (Sexual)

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5
Q

What are the classification of Coccidians?

A

Intestinal Coccidians
Tissue Coccidians

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6
Q

What is the prevalent in Intestinal Coccidians?

A

AIDS patient/Immunocompromised persons

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7
Q

Infective stage in Intestinal Coccidians

A

Oocysts

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8
Q

Diagnostic Stage in Intestinal Coccidians

A

Oocysts demonstrated in feces

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9
Q

What are included in Intestinal Coccidian Group?

A

Cystoisospora
Cryptosporidium
Cyclospora
Sarcocystis

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10
Q

What are included in Tissue Coccidian Group?

A

Toxoplasma

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11
Q

Other name for Cystoisospora belli

A

Isospora belli

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12
Q

It is a coccidian parasite in which can cause diarrhea in humans

A

Cystoisospora belli

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13
Q

Cytoisospora belli was originally described by? In what year?

A

Virchow,1860

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14
Q

Cytoisospora belli was named in ____

A

1923

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15
Q

Where does the name Belli came from? And what does it mean?

A

Bellium, war

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16
Q

It is more common in tropical and subtropical countries

A

Cystoisospora belli

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17
Q

Clinical Symptoms of Cystoisospora belli

A

diarrhea(most common)
weight loss
abdominal pain
fever

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18
Q

Cystoisospora belli is severe among __________ hosts, particullary those with ____

A

immunocompromised, AIDS

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19
Q

In epidemiology of Cystoisospora belli, it is more common in tropical and subtropical countries aith poor sanitary conditions.

A

Cosmopolitan

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20
Q

It is the known host of C. belli

A

Humans

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21
Q

it is were observed in the gastric mucosal crypts of laboratory mice

A

Cryptosporidium parvum

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22
Q

Who observed the gastric mucosal crypts? in what year?

A

Tyzzer, 1907

23
Q

when does the diarrhea in animals recognized?

A

1971

24
Q

When does the first case of human infection was reported?

A

1976

25
Q

It is frequent cause of intractable diarrhea and worldwide distribution

A

Cryptosporidium parvum

26
Q

What are the 2 species of Cryptosporidium?

A

Cryptosporidium hominis
Cryptosporidium parvum

27
Q

Former name of Cryptosporidium hominis

A

Cryptosporidium parvum genotype 1

28
Q

Former name of Cryptosporidium parvum

A

Cryptosporidium parvum genotype 2

29
Q

C. parvum genotye 1

A

Humans

30
Q

C. parvum genotype II

A

Both animals and humans

31
Q

Incubation period in Cryptosporidiosis

A

2-14 days

32
Q

The respiratory infection of Cryptosporidiosis lead to:

A

Chronic coughing, dyspnea, bronchiolitis, pneumonia

33
Q

Cryptosporidium parvum prevalence percentage:

A

3-20% (Ph: 2.6%)

34
Q

Other name/called for Cyclospora cayetanensis

A

Cyanobacterium-like body

35
Q

Other name/called for Cyclospora cayetanensis

A

Cyanobacterium-like body

36
Q

Cyclospora cayetanensis was first reported in

A

Nepal

37
Q

Cyclospora cayetanensis outbreaks have been associated with

A

contaminated berries

38
Q

Initial Symptoms of Cyclosporidiosis

A

malaise
low-grade fever

39
Q

The initial symptoms of Cyclosporidiosis occur at

A

12-24 hrs

40
Q

What are the Sarcocystis species

A

Sarcocystis hominis
Sarcocystis suihominis
Sarcocystis lindemanni

41
Q

Intermediate host of Sarcocystis hominis

A

Cow

42
Q

Intermediate host of Sarcocystis suihominis

A

Pig

43
Q

Immunocompromised hosts in Sarcocystis spp.

A

Fever
severe diarrhea
abdominal pain
weight loss

44
Q

Definitive host of Toxoplasma gondii

A

Cats and other felines

45
Q

Intermediate host in Toxoplasma gondii

A

Man and other mammals

46
Q

2 types of life cycle in Toxoplasma gondii

A

Enteric cycle
Exoentric cycle

47
Q

In Toxoplasma gondii, Eating undercooked meat of animals harboring tissue cysts with _____.

A

Bradyzoites

48
Q

In toxoplasma gondii, transplacentally from mother to fetus when ______ pass through the placental barrier

A

tachyzoites

49
Q

The pathogenesis of Toxoplasma gondii had infection acquired Postnatally is mostly?

A

asymptomatic (90%)

50
Q

The most common manifestation of acute acquired toxoplasmosis is ______.

A

lymphadenopathy

51
Q

These are often present in Toxoplasma gondii’s pathogen

A

fever
headache
myalgia
splenomegaly

52
Q

Another type of toxoplasmosis is

A

Ocular

53
Q

The ocular type of toxoplasmosis may present as

A

uveitis
choroiditis/chorioretinitis

54
Q

In congenital Toxoplasmosis, most infected newborns are

A

aysmptomatic at birth