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Ectoparasites > Fleas > Flashcards

Fleas Flashcards

1
Q

What is the lifecycle of a flea?

A

Flea -> egg -> larvae -> pupa

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2
Q

How long does it take from an adult flea to lay an egg?

A

48 hours after infestation

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3
Q

How long does it take for an egg to develop into larvae?

A

1-10 days

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4
Q

How long does it take the larvae to form into a pupa?

A

5-11 days

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5
Q

How long can a flea remain dormant for?

A

<6 months

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6
Q

What is the length of the lifecycle of a flea?

A

3-5 weeks

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7
Q

How long can a flea survive if unfed?

A

10-60 days

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8
Q

What is the flea of veterinary importance that does not have ctendia?

A

Echidnophaga gallinacea - hen flea

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9
Q

What are the clinical signs of the echidnophaga gallinacea flea?

A

Excoriation and crusts above the eye

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10
Q

What are the 4 fleas of veterinary importance with ctendia?

A

Ceratophillus gallinae
Ctenocephalides canis
Ctenocephalides felis
Spilopsyllus cuniculi

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11
Q

Which flea is also known as the hen flea?

A

Ceratophillus gallinae

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12
Q

What are the characteristics of ceratophillus gallinae?

A

Moves onto birds to feed for short period, so do not spend long periods of time on the host.

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13
Q

What flea infects dogs?

A

Ctenocephalides canis

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14
Q

What flea infects cats?

A

Ctenocephalides felis

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15
Q

What flea infects rabbits?

A

Spilopsyllus cuniculi

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16
Q

What disease is spread by spilopsyllus cuniculi?

A

Myxomatosis, which causes puffiness around the head and the genitals.
May progress to acute conjunctivitis and blindness.

17
Q

Which flea was responsible for the spread of the plague? What bacterium did it transmit?

A

Xenopsylla cheopis - rat flea.

Transmitted Yersinia pestis.

18
Q

How many times does a flea feed per day?

A

2-4x

19
Q

When do fleas have their first meal?

A

40 minutes after infestation

20
Q

How much can a flea increase in volume?

A

x15

21
Q

What is the egg production of a flea?

A

40-50 per day.

Declines with age to ~30

22
Q

How can fleas be found on animals?

A

Use a flea comb and a wet paper towel.

Microscopy can show eggs and faeces.

Ectoparasites (5 decks)

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