Vectors - Mites, Ticks, Lice And Fleas
- 1.Demodex follicularum and brevis can cause dermatitis and acne in some.
- A.
True
- B.
False
- 2.Dermatophagoides is also known as
- A.
The houst dust mite
- B.
Tunga penetrans
- C.
The tropical rat flea
- D.
A soft tick
- 3.Pthirus pubis is a vector
- A.
True
- B.
False
- 4.The body louse is a vector of which of the following. Select all that apply.
- A.
Murine typhus
- B.
Russian Spring Summer Encephalitis
- C.
Omsk haemorrhagic fever
- D.
Epidemic relapsing fever (B.recurrentis)
- E.
Bartonella quintana
- F.
Bartonella bacilliformis
- 5.Even when treated with doxycycline, the mortality of Louse-borne epidemic typhus is between 1 and 20%?
- A.
True
- B.
False
- 6.Lice are described as being dorso-ventrally rounded.
- A.
True
- B.
False
- 7.How many nymphal stages do all lice have?
- A.
2
- B.
3
- C.
None
- D.
5
- 8.Soft ticks have which of the following features. Answers may be multiple.
- A.
Scutum
- B.
A hemimetabolous life cycle
- C.
Non-visible mouthparts
- D.
4+ nymphal stages
- E.
1 nymphal instar
- 9.Ornithodorous moubata transmits Borellia duttonii in East Africa.
- A.
True
- B.
False
- 10.The dog and cat flea has a meral rod but not pronatal or genal comb
- A.
True
- B.
False
- 11.Which of these species of flea can be vectors of Yersinia pestis.
- A.
Pulex irritans
- B.
Jigger flea
- C.
Xenopsylla cheopsis
- D.
Nosopsylla
- E.
Ctenocephalides
- F.
Tunga penetrans
- 12.Fleas have no larval stages, but do have nymphal stages.
- A.
True
- B.
False
- 13.Tunga penetrans is a disease vector.
- A.
True
- B.
False
- 14.Only female fleas are blood feeders.
- A.
True
- B.
False
- 15.Leptotrombidium mites are vectors of:
- A.
Scrub typhus
- B.
Epidemic typhus
- C.
Endemic typhus
- D.
Murine typhus
- 16.Orinenta tsutusugamushi is the bacterium causing:
- A.
Plague
- B.
Epidemic relapsing fever
- C.
Scrub typhus
- D.
Louse-born epidemic typhus
- 17.The chigger mite lifecycle follows the following:
- A.
Egg - larva - protonymph - duetonymph - tritonymph - adult
- B.
Egg - protonymph - tritonymph - duetonymph - larva - adult
- C.
Egg - tritonymph - duetonymph - protonymph - larva - adult
- D.
Egg - larva - adult
- 18.Scrub typhus can be transmitted trans-ovarially and trans-stadially.
- A.
True
- B.
False
- 19.Leptotrombidium is found in Asia.
- A.
True
- B.
False
- 20.
![What is this: - ProProfs]( "What is this:")
What is this:- A.
Nymphal stage tick
- B.
Cimex aka bed bug
- C.
Leptotrombidium aka the chigger mite
- D.
Body louse
- 21.This is pthirus pubis.
- A.
True
- B.
False
- 22.An allergic reaction to the faeces and exoskeletons occurs with this:
- A.
Dermatopgaoides aka House Dust mite
- B.
Sarcoptes scabei aka Scabies
- C.
The Jigger flea (tunga penetrans)
- D.
Demodex follicularum aka the human follicle mite.
- 23.Which tick can be controlled by treating livestock with acaricide.
- A.
Soft ticks
- B.
Hard ticks
- 24.Tick paralysis occurs in soft ticks
- A.
True
- B.
False
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