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Arthropod vectors > Past exam questions > Flashcards

Past exam questions Flashcards

1
Q

Which agent is spread mechanically by the hog louse?

a. Mycoplasma suis
b. Anaplasma marginale
c. Bartonella quintana
d. Rickettsia prowazekii

A

a. Mycoplasma suis

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2
Q

What is the objective of epidemiology?

a. To study the occurrence of infectious disease in populations
b. To study disease in populations and of factors that determine their occurrence; the key word being populations
c. To build mathematics models for

A

b. To study disease in populations and of factors that determine their occurrence; the key word being populations

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3
Q

Which is / are vector(s) of Rickettsia felis?

a. All three
b. Xenopsylla cheopis
c. Ctenocephalides felis
d. Archaeopsylla erinacei

A

c. Ctenocephalides felis

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4
Q

What kind of vectors are tabanids in the transmission of Anaplasma marginale?

a. Mechanical
b. Biological with transovarial transmission
c. Biological with stercorarian transmission
d. None of these

A

a. Mechanical

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5
Q

SENSITIVity is the probability that a truly … animal will be identified by the diagnostic test as …

A

Fill in: Diseased and diseased

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6
Q

Which agent is connected properly to its characteristic mode of transmission by hard ticks?

a. Anaplama marginale - intrastadial
b. Anaplasma marginale - transovarial
c. Rickettsiae - intrastadial
d. Rickettsiae - stereovarian

A

a. Anaplama marginale - intrastadial

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7
Q

SPECIFICity is the probability that a truly … animal will be identified by the diagnosis test as …

A

Fill in: non-diseased and non-diseased

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8
Q

Which has a peak activity around summer?

a. H. conncina
b. D. marginatus
c. D. reticulatus
d. H. inermis and H. punctata

A

a. H. conncina

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9
Q

What is the causative agent of DEBONEL?

a. Rickettsia slovaca and Rickettsia conorii
b. Rickettsia helvetica
c. Anaplasma marginale
d. Anaplasma phagocytophilum

A

a. Rickettsia slovaca and Rickettsia conorii

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10
Q

In which tick genus does both the rectangular (in case of adult and in case of nymph) basis capitali occur?

a. Dermacentor
b. Ixodes
c. Haemaphysalis
d. Rhipicephalus

A

a. Dermacentor

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11
Q

Which of the Haemophysalis species that shows increasing importance in several European countries, and carries Rickettsia helvetica with higher prevalence than the known vector of the latter?

a. H. inermis
b. H. sulcata
c. H. conncina
d. H. punctata

A

a. H. inermis

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12
Q

What is prevalence?

a. It represents the fraction of existing cases in the population
b. The probability that the diagnostic test result of a truly diseased animal will be positive
c. The probability that the diagnostic test result of a truly non-diseased animal will be negative

A

a. It represents the fraction of existing cases in the population

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13
Q

What is the name of the new mosquito species in Europe?

a. Aedes albopictus
b. Aedes aegypti
c. Culex pipiens

A

b. Aedes aegypti

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14
Q

What is the most primitive blood feeding behaviour of vectors?

a. Telmophagy
b. Solenophagy
c. Homophagy

A

a. Telmophagy

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15
Q

… is the overall ability of a vector species in a given location at a specific time to transmit a pathogen

a. Vector activity
b. Vector capacity
c. Vector competence

A

b. Vector capacity

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16
Q

Which is the mosquito borne pathogen?

a. Bartonella henselae
b. Yersinia pestis
c. West Nile virus

A

c. West Nile virus

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17
Q

Nowadays which is the invasive mosquito species in Europe?

a. Culex pipiens
b. Aedes albopictus
c. Aedes aegypti

A

c. Aedes aegypti

18
Q

These vectors can transmit the pathogen bluetongue

a. Mosquitoes
b. Sandflies
c. Biting midges

A

c. Biting midges

19
Q

Which tick species is the most widespread in the world

a. Ixodes ricinus
b. Rhipicephalus sanguineus
c. Dermacentor reticulatus

A

b. Rhipicephalus sanguines

20
Q

Rh. sanguineus is a tick…

a. Endophilous
b. Exophilous
c. Nidiculous

A

a. Endophilous

21
Q

What is the main vector of Crimean Congo Haemorrhagic Fever Virus in Eurasia?

a. Hyaloma marginatum
b. Rhipicephalus sanguineus
c. a + b

A

a. Hyaloma marginatum

22
Q

Which is flea-borne pathogen in Europe?

a. Rickettsia felis
b. West Nile virus
c. Chikungunya virus

A

a. Rickettsia felis

23
Q

“Four-poster” device is used for controlling

a. Mosquitoes
b. Hard ticks
c. Others

A

b. Hard ticks

24
Q

Which is true for Ixodes ricinus?

a. Exophilic
b. “Stays in the nest”
c. “Hunting tick”

A

a. Exophilic

25
Q

In which species does Anaplasma phagocytophilum occur?

a. Sheep
b. Human
c. Both

A

c. Both

26
Q

The vectors of sandfly in Europe?

a. Anopheles spp.
b. Phlebotomus spp.
c. Culicoides spp.

A

b. Phlebotomus spp.

27
Q

Which statement is true regarding Borrelia burgdorferi sensu lato?

a. It is not present in North America
b. It is a Gram-negative coccus
c. The actual annual case number is probably much higher in Hungary that the reported Lyme borreliosis case number

A

c. The actual annual case number is probably much higher in Hungary that the reported Lyme borreliosis case number

28
Q

Please give the Latin name of the Asian tiger mosquito

A

Aedes albopictus

29
Q

What is the vector of Toxcana virus?

a. Hard ticks
b. Mosquitoes
c. Sandflies

A

c. Sandflies

30
Q

Hyalomma marginatum is a … host species

a. One
b. Two
c. Three

A

b. Two

31
Q

Brown dog tick is:

a. Hunting + Questing
b. Only hunting
b. Only questing
d. Passive

A

a. Hunting + Questing

32
Q

What is true regarding Tick-borne encephalitis (TBE)?

a. You take a human vaccine only one time to prevent it
b. TBE only spread by tick bite
c. More often diagnosed in Hungary than in some other countries

A

b. TBE only spread by tick bite

33
Q

Definition of prevalence?

A

It represents the fraction of existing cases in the population

34
Q

Definition of epidemiology?

A

To study diseases in populations and of factors that determine their occurrence; the key word being populations

35
Q

Definition of specificity?

A

Specificity is the probably that a truly non-diseased animal will be identified by the diagnostic test as non-diseased (negative)

36
Q

Definition of sensitivity?

A

Sensitivity is the probability that a truly diseased animal will be identified by the diagnostic test as diseased (positive)

37
Q

How long for Ixodes ricinus in its environment?

A

Can go for one year without sucking blood

38
Q

Definition of incidence?

A

Is the number of new cases that occur in a known population over a specific period of time

39
Q

Which mosquito virus pathogens?

A 
West Nile virus
Dengu
Zika
Chikungunya
Yellow fever 
(Malaria)
40
Q

Reservoir of West Nile virus?

A

Birds

Arthropod vectors (1 decks)

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