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PVS > Parasitology: Endoparasites > Flashcards

Parasitology: Endoparasites Flashcards

1
Q

What are the sucking lice?

A

Haematopinus

Linognathus

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2
Q

What are the chewing lice?

A 
Damalina 
Felicola
Trichodectes
Lipeurus
Cuclotogaster 
Menacanthus
Gliricola
Gyropus
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3
Q

What are keds, where do they come from?

A

Wingless blood-feeding flies – whole life cycle on host

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4
Q

What are midges and mosquitos vectors of?

A

vectors of bluetongue, Schmallenburg virus

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5
Q

What are sandflies vectors of?

A

vector of leishmaniosis- use a Deltamethrin collar

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6
Q

What is myiasis?

A

Blowfly strike

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7
Q

Are iodide ticks hard or soft?

A

Hard

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8
Q

What are the direct effects of ticks?

A
  • Blood loss
  • Local cutaneous damage and inflammation
  • Secondary skin infection
  • Production loss
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9
Q

What are the common tick species? What do they transmit?

A
  • Ixodes ricinus – Borrelia burgdorferi (Lyme disease), louping ill virus, Ehrlichia, Anaplasma and Babesia in cattle.
  • Ixodes hexagonus- (possibly B. burgdorferi)
  • Ixodes canisuga - (possibly B. burgdorferi)
  • Haemaphysalis punctata (B gibsoni) - S England and Wales, widely in Europe
  • Dermacentor reticulatus – Babesia canis W Europe, rarely UK
  • Rhipicephalus sanguineus – B. canis, B vogeli, Ehrlichia canis, Rickettsia, Anaplasma - S Europe, cannot survive outside in temperate climates
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10
Q

What is the most common tick Bourne disease in the UK?

A

Borreliosis (Lyme disease) is the most common tick-borne disease in the UK
Spirochete, or ‘corkscrew-shaped’ bacteria known as Borrelia burgdorferi is the pathogen responsible for causing Lyme disease.

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11
Q

What is louping ill?

A

Infectious ovine encephalomyelitis
Mainly causes disease in sheep and grouse particularly in upland areas. Occasionally causes illness in humans and other animals
Virus attacks the CNS

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12
Q

What is babesiosis?

A

Babesia spp are intraerythrocytic protozoan parasites that infect a range of domestic and wild animals and occasionally man
Infection results in the destruction of erythrocytes, causing severe anaemia

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13
Q

How do we prevent tick Bourne diseases?

A

Prevent attachment if possible
Prevent transmission of pathogens by prompt killing/removal
– feeding and transmission of pathogens usually delayed several hours after attachment.
– For some diseases >24h lag before pathogen transmission (but disease/species-dependent)

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14
Q

What are the 3 most common tick species in the uk

A

Mainly Ixodes spp plus regional H punctata, D reticulatus

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15
Q

How do we prevent ticks in cattle?

A

Dips/spray/shower/spot-on/slow release ear tag of OPs (declining use), pyrethroids, amitraz
Macrocyclic lactones parenterally

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16
Q

What are the direct affects of mite infestation?

A
  • Cause cutaneous lesions (mange)
  • Loss of blood or other tissue fluids
  • Immunopathological response
  • Zoonotic
17
Q

What is an infestation of mites called?

A

Infestation by mites is called acariasis and can result in severe dermatitis, known as mange. Can result in: erythema, pruritus, scale formation, lichenification and crust formation, alopecia.

18
Q

What species does sarcoptic mange affect?

A

Dogs, pigs

19
Q

What species does psoroptic mange affect?

A

sheep, cattle, rabbits

20
Q

What species does chorioptic mange affect?

A

horses, cattle

21
Q

What species does demodectic mange affect?

A

Dogs

22
Q

What species does cnemidocoptic mange affect?

A

poultry, parrots (scaly legs/beak)

23
Q

What species does otodectic mange affect?

A

cats and dogs

24
Q

What are the burrowing mites?

A 
»	Sarcoptes
»	Notoedres
»	Trixacarus
»	Knemidocoptes 
»	Demodex
25
Q

What are the surface mites?

A 
»	Psoroptes
»	Chorioptes
»	Otodectes
»	Cheyletiella
»	Dermanyssus
»	Trombiculidae
26
Q

What anthelmintics are affective against mites?

A

Moxidectin- monthly spot on
Selamectin - monthly spot on
Sarolaner - monthly tablet
Amitraz - weekly baths

PVS (43 decks)

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