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Lab content Flashcards

1
Q

Wuchereria bancrofti - disease

A

Lymphatic filiariasis - elephantiasis, lymphoedema caused by adult worms in the lymphatic vessels

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2
Q

Wuchereria bancrofti - vector

A

Culcine and anopheles mosquitoes

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3
Q

Wuchereria bancrofti - giemsa staining features

A
  1. Pink sheath
  2. No nucleus in the tail (BANned)
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4
Q

Brugia malayi - disease

A

Lymphatic filariasis due to adult worms in the lymphatics

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5
Q

Brugia malayi - vectors

A

Mansonia, Anopheles mosquitoes

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6
Q

Brugia malayi - giemsa staining features

A
  1. Pink sheath
  2. 2 nuclei in the tail (two for bru)
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7
Q

Loa loa - disease

A

Eye migration
Calabar swellings (hypersensivitiy reactions)

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8
Q

Loa loa - vector

A

Deerfly (chrysops)

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9
Q

Loa loa - features on giemsa staining

A
  1. Ghost sheath (does not stain)
  2. Flattened nuclei go all the way to the end (lower and lower)
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10
Q

Onchocerca volvulus - giemsa staining

A
  1. No sheath
  2. No nucleus in the tail
  3. Bigger than mansonella
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11
Q

Mansonella species - giemsa staining

A

Smaller and narrower
Small nuclei at the end (shepherd’s hook)

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12
Q

Mansonella vector

A

Midges/blackflies

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13
Q

Sandfly features

A

Sandy coloured, very hairy body and wings

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14
Q

Blackfly features

A

Hunchback, very clear wings

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15
Q

Biting midge features

A

Wings with dark and paler patchiness

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16
Q

Anopheles vs culcine heads

A
  1. Palps. Short —> Female culcine. If long…
  2. If the antennae are fluffy it’s a male
  3. Then to distinguish if it’s anopheles or culcine –> has a more spade like antennae in anopheles
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17
Q

Tse tse fly

A

Meat cleaver feature in the wing

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18
Q

Deerfly - key feature and disease

A

Hexagon feature in the wing with dark bands features

Loa loa

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19
Q

Culex mosquito key feature

A

Boring and brown

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20
Q

Haemagogus mosquito key feature

A

Bright metallic sheen

21
Q

Mansonia mosquito key feature

A

Salt and pepper leaves on wings

22
Q

Aedes mosquito key feature

A

Stripey legs, white markings like a violin on its back

23
Q

P falciparum - ring stage key features

A

Small delicate rings with chromatin dots
Few spots (Maurer’s clefts)
Accoles on the outside of the cell
RBC NOT enlarged

24
Q

P vivax - ring stage key features

A

Not such a neat ring form
Lots more dots (although not too dark) - schuffner’s
RBC enlarged

25
Q

P ovale ring stage

A

Compact but thick rings
Darkers dots
May have fimbriation
Tend not to be as enlarged as vivax

26
Q

P malariae - ring stage key features

A

Small compact rings
No dots

27
Q

Triatomine head has antennae inserted at the end of the head

28
Q

Triatomine head has antennae inserted mid way along the head

29
Q

Triatomine head has antennae inserted just in front of the eyes and has a short chubby head

A

Panstrongylus

30
Q

Mosquito egg has little floats on the side

31
Q

Mosquito eggs in a collection like a raft

A

Culex (think cullection)

32
Q

Mosquito eggs are in a group stuck to some vegetation

33
Q

Mosquito eggs are boring cigar shaped with no floads

34
Q

Mosquito larva which has no siphon

35
Q

Mosquito larva which has a siphon

A

Culex/aedes

36
Q

Mosquito larva which has a cerrated point for a siphon

A

Mandonia (think it likes to stick to vegetation)

37
Q

Larva - looks like a white space hopper

A

Tse tse fly larva

38
Q

Larva - looks like a black space hopper

A

Tse tse fly pupa

39
Q

Upright pupa

40
Q

Pupa sits in a slipper shaped cocoon

41
Q

How to distinguish between clonorchis and opisthorcis adults

A

Opisthorcis have lobulated testes, rather than branched

42
Q

Treatment for Trypanosoma Brucei

A

Pentamidine

43
Q

Deep cavity and pointed tail in filariform L3 larvae

44
Q

Deep buccal cavity at the head of this rhabditiform L1 larvae

45
Q

Periorbital odoema and GI symptoms after eating undercooked sausages

A

Trichinella

46
Q

Onchocerciasis vector

A

Black fly (river blindness — see black)

47
Q

Wuchereria Bancrofti mosquito

A

Culex aedes anopheles

48
Q

Brugia malayi mosquito

ID study (25 decks)

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