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(LEC) PARASITOLOGY > 3.4 - CAPILLARIA PHILIPPINENSIS > Flashcards

3.4 - CAPILLARIA PHILIPPINENSIS Flashcards

1
Q

natural host

A

migratory fish-eating birds

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2
Q

intermediate host

A

brackish/fresh water fish

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3
Q

final/accidental host

A

man

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4
Q

habitat

A

small intestine

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5
Q

MOT

A

ingestion of larva (from raw fish)

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6
Q

infective stage

A

larval stage (in fish)

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7
Q

diagnostic stage

A

egg

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8
Q

The first case of Capillaria philippinensis was discovered in ?, hence the name of the species.

A

Ilocos Norte in 1963

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9
Q

produce eggs that hatch outside the body of the mother; lay undeveloped eggs

A

Oviparous

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10
Q

produce eggs that hatch within the mother; produce embryonated eggs

A

Ovoviviparous

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11
Q

immediately bears larvae

A

Larviparous

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12
Q
  • Secretory cells
  • Found along the esophagus of the parasite
A

Stichocytes

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13
Q
  • Entire esophageal structure with stichocytes
  • A collection of stichocytes
A

Stichosome

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14
Q

2 modes of reproduction

A
  • typical
  • atypical
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15
Q

mode of reproduction: oviparous

A

Typical

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16
Q

mode of reproduction: ovoviviparous, larviparous

17
Q
  • 1.5-3.9 mm
  • spicule: 230-300 um
  • unspined sheath
A

male adult

18
Q
  • 2.3-5.3 mm
  • can be either oviparous, ovoviviparous, larviparous
19
Q

egg shape

A

peanut or guitar shaped

20
Q

unique diagnostic characteristic of eggs

A
  • thick radially striated cells
  • flattened bipolar mucus plugs
  • 36 to 45um by 20 um
21
Q

stage of the parasite in the infected fish; infective stage of Capillaria philippinensis in man

A

L3 Filariform larva

22
Q

life cycle

A
  1. ingestion of raw infected fish
  2. small intestine
  3. larva to adult
  4. copulation
  5. lay eggs
  6. if unembryonated - passed to stool; new cycle of infection
  7. if embryonated - autoinfection -> hyperinfection
23
Q

Infective stage in intermediate host:

A

embryonated egg

24
Q

Infective stage in final host:

A

larva lodged into the intestine
or the mean of undercooked or raw fish

25
Q

fish that has higher parasitic yield

A

Bagsit (Hypseleotris bipartita)

26
Q

intestinal capillariasis

A

mystery disease or Pudoc disease

27
Q

chronic diarrhea

A

8-10 voluminous stool per day

28
Q

gurgling stomach

A

Borborygmus

29
Q
  • severe diarrhea
  • electrolyte imbalance
A

chronic diarrhea

30
Q

other clinical manifestations

A
  • abdominal pain
  • protein-losing enteropathy
  • hypoalbuminemia
  • intestianal malabsorption
  • hypoproteinemia
31
Q

diagnostic tests

A
  • DFS
  • kato thick
  • concentration test
  • ELISA
32
Q
  • detects coproantigen
  • disadvantage: cross reaction with Trichinella spiralis antigen
A

ELISA (enzyme-linked immunosorbent assay)

33
Q
  • First recorded in the Philippines
  • Endemic in the Philippines and Thailand
  • Mystery disease - Compostela Valley
A

epidemiology

34
Q

treatment

A

mebendazole

35
Q

other Capillaria spp

A
  • Capillaria hepatica
  • Capillaria aerophilia
36
Q

causes the human hepatic Capillariasis

A

Capillaria hepatica

37
Q

causes the human pulmonary Capillariasis

A

Capillaria aerophilia

38
Q

pathogenesis and clinical manifestations of other Capillaria spp

A
  • Asymptomatic
  • Heavy infections can cause gastrointestinal problems
  • Abdominal pain
  • Diarrhea
  • Anorexia
  • Headache
  • Fatigue
  • Anemia
  • Eosinophilia
39
Q

diagnosis for other Capillaria spp

A
  • DFS
  • concentration test

(LEC) PARASITOLOGY (7 decks)

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