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Parasitology FINAL > Flatworms > Flashcards

Flatworms Flashcards

1
Q

Phylum of flatworms

A

Platyhelminthes

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2
Q

Class of Flukes

A

Trematoda

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3
Q

Class of Tapeworms

A

Cestoda

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4
Q

Other name for fasciolosis

A

liver fluke disease

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5
Q

What kind of animals are affected by fasciolosis?

A

grazing animals

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6
Q

health importance of fasciolosis

A

Emerging food borne, neglected tropical human disease
(Nasturtium officinale)

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7
Q

causative agents of liver fluke disease

A

Fasciola hepatica (temperate areas)
Fasciola Gigantica (tropical areas)

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8
Q

hosts of F. hepatica

A

herbivorous mammals
humans

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9
Q

hosts of F. Gigantica

A

camel
cattle
buffalo

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10
Q

hosts of F. Hepatica with low resistance

A

sheep
goat
rabbit

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11
Q

hosts of F. Hepatica with delayed resistance

A

cattle, man

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12
Q

hosts of F. Hepatica with early resistance

A

pig
dog
cat

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13
Q

appearance & longevity of F. hepatica

A

leaf like
years

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14
Q

Site of fasciolosis

A

bile duct

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15
Q

Life cycle of Fasciola

A

indirect

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16
Q

INtermediate hosts of Fasciola hepatica

A

Galba Truncatula

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17
Q

phases of Life cycle of faciola hepatica

A

MI
SPO
RE1
RE2
CE
MCE

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18
Q

Infection of facial hepatica

A

PO with metacercaria

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19
Q

Epidemiology of Fasciolosis

A

endemic where condition are suitable for intermediate hosts

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20
Q

MC in late summer or autumn are found in which areas

A

in cool and temperate areas

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21
Q

MC from spring or early summer (summer fasciolosis) are found in which areas

A

milder climate

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22
Q

Acute Fasciolosis

A
  • massive short term of MC intake
  • sudden death at 2-5 weeks
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23
Q
A
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24
Q

Chronic fasciolosis

A

-moderate, prolonged intake of MC
- oedema under the jaw
- hepatic fibrosis
- hypoalbuminemia

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25
Q

diagnosis of fasciolosis

A
  • history (grazing in endemic area)
  • detection of eggs (acute fasciolosis no eggs, very similar to rumen fluke eggs)
  • détection of antibodies
  • detection of coproantigen from faeces
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26
Q

treatment of acute fasciolosis

A
  • stop grazing
  • ## Triclabendazole (there is resistance)
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27
Q

treatment of subacute & chronic fasciolosis

A

any flukicidal effective against flukes 6 weeks or older

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28
Q

Name of Fascioloidosis

A

large American liver fluke

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29
Q

causative agent of Large American liver fluke

A

Fascioloides magna

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30
Q

Hosts of Fascioloides magna

A

N.A.: wapiti, white tailed deer, caribou
EU: Roe-deer, red deer, fallow deer

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31
Q

definitive hosts of Fascioloides magna

A

deer

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32
Q

Paratenic hosts of Fascioloides magna

A

cattle

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33
Q

Aberran hosts of Fascioloides magna

A

sheep & goat
(causes fatal traumatic hepatitis)

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34
Q

Life cycle of Fascioloides magna

A

similar to F. hepatica with Galba truncatula

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35
Q

detection of eggs of Fascioloides magna

A

only in definitive hosts

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36
Q

Other name for paraphistomosis

A

Rumen Fluke disease

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37
Q

Occurence of paraphistomosis

A

grazing domestic and wild animals

38
Q

causative agents of paraphistomosis

A

Paraphistomum ichikawai
P. Leydeni
P. cervi
Calicophoron Daubneyi
C. microbothrioides
C. microbothrium

39
Q

Which is the most common causative agent of paraphistomosis in Ireland

A

Calicophoron Daubneyi

40
Q

predilection site of paraphistomosis

A

Rumen
Reticulum

41
Q

Life cycle of paraphistomosis causative agents

A

Indirect

42
Q

Intermediate hosts of paraphistomosis causative agents

A

Freshwater or amphibious snails

43
Q

Infection of paraphistomosis causative agents

A

per os with Metacercariae

44
Q

pathway of paraphistomosis causative agent in hosts

A

immature –> duodenum, abomasum –> rumen reticulum

45
Q

Chronic paraphistomosis clinical signs

A

none

46
Q

acute paraphistomosis clinical signs

A

diarrhea
weight loss
inappetence

47
Q

diagnosis of acute paraphistomosis

A

NO eggs, juvenile flukes in faeces

48
Q

diagnosis of chronic paraphistomosis

A

colorless egg, do not confuse with facial hepatica eggs

49
Q

English name for Dicrocoeliosis

A

Lanceolate fluke
Small liver fluke disease

50
Q

occurence of Dicrocoeliosis

A

grazing animals

51
Q

health importance of Dicrocoeliosis

A

moderate, sometimes humans

52
Q

health importance of paraphistomosis

A

none

53
Q

causative agents of Dicrocoeliosis

A

Dicrocoelium dentriticum
D. hospes

54
Q

Where is D. hospes found

A

tropical region

55
Q

predilection site of Dicrocoelium

A

bile duct, gall bladder

56
Q

Life cycle of Dicrocoeliosis causative agents

A

indirect

57
Q

intermediate host of Dicrocoeliosis causative agents

A

2:
- terrestrial snails
- ants

58
Q

infection of Dicrocoeliosis causative agents

A

PO, with ants containing metacercaria

59
Q

pathways of Dicrocoeliosis causative agents in the hosts

A

young flukes –> via ductus choledochus –> bile ducts

60
Q

Pathogenesis of Dicrocoeliosis

A

Cholangitis
thickening of bile duct wall
fibrosis
cirrhosis

61
Q

diagnosis of Dicrocoeliosis

A

detection of eggs (dark brown, thick shelled, contains miracidium)

62
Q

English name for Schistosomatidosis

A

Blood fluke disease

63
Q

occurence of Schistosomatidosis

A

tropical and subtropical zones

64
Q

public health importance of Schistosomatidosis

A

very high

65
Q

causative agents of Schistosomatidosis

A

Schistosoma bovis
S. mattheei
S. japonicum
S. mansoni (only man)
S. haematobium (only man)

66
Q

which causative agents of Schistosomatidosis can be found in portal and mesenteric veins

A

S. bovis
S. japonicum

67
Q

which causative agents of Schistosomatidosis can be found in intestinal, hepatic and bladder veins

A

S. Mattheei

68
Q

which causative agents of Schistosomatidosis can be found in intestinal schistosomosis

A

S. mansoni

69
Q

which causative agents of Schistosomatidosis can be found in urinary or bladder

A

S. Haematobium

70
Q

description of Schistosomatidosis causative agent

A

sexual dimorphism
male broad and flat
longer female

71
Q

life cycle of Schistosomatidosis causative agent

A

indirect

72
Q

intermediate hosts of Schistosomatidosis causative agent

A

freshwater snails

73
Q

infection of Schistosomatidosis causative agent

A

percutan
PO furcocercaria

74
Q

clinical signs of Schistosomatidosis

A
  • cercarial dermatitis
    Acute: fever
    Chronic: granulomatous inflammatory response
75
Q

Opishtorchiosis occurence

A

Fish consuming animals

76
Q

public health importance of Opishtorchiosis

A

cholangio-carcinoma in dogs, cats and humans

77
Q

Causative agent of Opishtorchiosis

A

Opisthorchis felineus

78
Q

English name of Opisthorchis felineus

A

cat liver fluke

79
Q

life cycle of Opishtorchiosis

A

indirect

80
Q

intermediate hosts of Opishtorchiosis causative agents

A

snails

81
Q

infection of Opishtorchiosis causative agents

A

infected fish containing metacercaria
–> through ductus choledochus
–> bile duct, gallblader

82
Q

cycle of Opishtorchiosis causative agents

A

MI- SPO - RE -CE

83
Q

diagnosis of Opishtorchiosis

A

detection of eggs, miracidium inside

84
Q

Alariosis occurrence

A

temperate climate of Europe, Asia and america

85
Q

public health importance of Alariosis

A

prevalence in wild carnivores, eye of human

86
Q

causative agents of Alariosis

A

Alaria alata
A. marcianae
A. canis

87
Q

Predilection site of Alariosis

A

small intestines

88
Q

life cycle of Alariosis causative agents

A

indirect

89
Q

intermediate hosts of Alariosis causative agents

A

snails (cercaria)
tapdoles, frogs (mesocercaria)

90
Q

cycle of life of Alariosis causative agents

A

MI –> SPO -> RE1-> RE2 -> CE -> MCE

91
Q

infection of Alariosis causative agents

A

PO : mesocercaria
PO: through paratenic hosts (wild boar, poultry, pig)

Parasitology FINAL (4 decks)

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