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Microbiology and Immunology > Lecture 7 > Flashcards

Lecture 7 Flashcards

1
Q

How many protozoan parasites are there

A

6

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2
Q

Name all the protozoan parasites

A

Giardia lamblia
Trichomonas vaginalis
Toxoplasma gondii
Plasmodium spp.
Cryptosporidium spp. (C.parvum)
Cyclospora cayetanensis

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3
Q

Name all the metazoan parasites

A

Enterobius vermicularis
Trichinella spp.
Diphyllobothrium
Taenia
Schistosoma spp.

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4
Q

Failure to thrive in young children can be associated with what parasite

A

Giardia lamblia

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5
Q

True or false:
Most Giardia lamblia infections are asymptomatic

A

True

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6
Q

What is the most common protozoan infection of intestinal tract worldwide

A

Giardia lamblia

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7
Q

What form of microscopy should be used to find giardia lamblia

A

Bright field microscopy

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8
Q

What are the three different forms of testing for giardia lamblia

A

String test
Microscopy
Immunological testing

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9
Q

Can you treat giardia lamblia

A

Yes

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10
Q

True or false:
Giardia lamblia can be water borne, food borne and transmitted faecal-orally

A

True

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11
Q

Name 3 ways giardia lamblia can be transmitted

A

Water
Food
Faecal matter

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12
Q

What is the most common sexually transmitted disease worldwide

A

Trichomonas vaginalis

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13
Q

How is trichomonas vaginalis transmitted

A

Through mucus membrane contact

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14
Q

Infection of trichomonas vaginalis during pregnancy can cause what

A

Premature delivery
Low birth weight

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15
Q

Can trichomonas vaginalis be treated

A

Yes

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16
Q

What parasite has cats as the definitive host

A

Toxoplasma gondii

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17
Q

What are three ways of transmission of toxoplasma gondii

A

Ingestion of sporulated oocysts
Ingestion of tissue cycsts
Congenital infection of fetus

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18
Q

Can toxoplasma gondii cause congenital infections

A

Yes

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19
Q

What parasite causes malaria

A

Plasmodium spp.

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20
Q

What parasite can cause issues in the lymph nodes

A

Toxoplasma gondii

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21
Q

Spiking fever and chills can be attributed to what parasite

A

Plasmodium spp.

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22
Q

How is plasmodium parasites diagnoses

A

Thin blood smears

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23
Q

Name 3 protozoan parasites that cause issues in pregnancies

A

Trichomonas vaginalis
Toxoplasma gondii
Plasmodium spp.

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24
Q

Plasmodium causes what disease

A

Malaria

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25
Q

Who are the intermediate hosts/vectors for plasmodium spp.

A

Mosquitoes

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26
Q

What is the most common symptom of cryptosporidiosis

A

Watery diarrhea

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27
Q

Is there a drug treatment for cryptosporidium

A

Nope :(

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28
Q

Name an obligate intracellular protozoan

A

Cryptosporidium

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29
Q

What protozoan infects the intestinal epithelial cells of the host

A

Cryptosporidiium

30
Q

What is the most prevalent mode of transmission of cryptosporidium

31
Q

Name one species of cryptosporidium

A

Cryptosporidium parvum

32
Q

Autoinfection can be attributed to what protozoan parasite

A

Cryptosporidium parvum

33
Q

Name 5 ways of transmission of Cryptosporidium parvum

A

Person-person
Autoinfection
Zoonotic
Foodborne
Water borne

34
Q

What are important reservoir hosts for cryptosporidium parvum

35
Q

Name one coccidian protozoan parasite

A

Cyclospora cayetanensis

36
Q

What does cyclospora cayetanensis cause

A

Cyclosporiasis

37
Q

What is the infectious dose for cyclosporiasis

38
Q

What is the incubation period for cyclosporiasis

A

About one week

39
Q

Name the parasite:
Low infectious dose
Person-person and zoonotic transmission unlikely

A

Cyclospora cayetanensis

40
Q

Majority of cases of cyclosporiasis in the US are transmitted how

A

Food borne

41
Q

Cyclosporiasis can be attributed to what parasite

A

Cyclospora cayetanensis

42
Q

What is the technical name for pinworm

A

Enterobius vermicularis

43
Q

What is the common name for enterobius vermicularis

44
Q

How do we diagnose pinworm

A

Scotch tape test on the butt

45
Q

What is the technical name for roundworm

A

Trichinella spp.

46
Q

What is the common name for Trichinella spp.

47
Q

How is trichinella transmitted

A

Ingestion of larvae

48
Q

What parasite’s larvae can work its way into your muscles

A

Trichinella spp.

49
Q

Trichinosis is caused by what parasite

A

Trichinella

50
Q

Trichinella causes what dieases

A

Trichinosis

51
Q

What is the technical name for a broad fish tapeworm

A

Diphyllobothrium spp.

52
Q

What is the common name for Diphyllobothrium spp.

A

Broad fish tapeworm

53
Q

Where does diphyllobothrium prefer to live

54
Q

How long does the Diphyllobothrium tapeworm get

55
Q

What parasite can cause pernicious anemia

A

Diphyllobothrium spp.
aka broad fish tapeworm

56
Q

What is a Taenia parasite

A

A large tapeworm

57
Q

The adult stages of a Taenia parasite is found only in what species

58
Q

What speicies of Taenia parasite can cause brain issues

A

Taenia solium

59
Q

What is the name of the neural issues caused by Taenia spp.

A

Neurocysticercosis

60
Q

Are Taenia spp. rare or common in Canada

61
Q

What is the common name for Schistosoma spp.

A

Blood flukes

62
Q

What is the technical name for blood flukes

A

Schistosoma spp.

63
Q

What insect are the major intermediate hosts with Schistosoma spp.

64
Q

What does Schistosoma spp attack

A

Liver and lymph nodes

65
Q

What is special about the transmission of Schistosoma spp.

A

It can penetrate the skin without need for a vetor

66
Q

What does Trichinosis affect

A

Heart
Central nervous system

67
Q

Do younger or older cats shed more Toxoplasma gondii oocysts

68
Q

Humans are the intermediate hosts for what parasite

A

Taenia solium

69
Q

Where are trichinella spp. larvae encysted

A

Striated muscle

Microbiology and Immunology (10 decks)

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