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EPI Final PQ > MT4 - Brucella > Flashcards

MT4 - Brucella Flashcards

1
Q

Rose-Bengal test is used for the detection of antibodies against brucellae

A

T

Slide agglutination test (Rose-Bengal test)

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2
Q

Brucella species cannot tolerate high temperature (60 °C) and low pH (pH: 4).

A

T

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3
Q

Brucellae can be detected by staining in the placenta of aborted foetuses in the case of brucellosis.

A

T

Köster-staining (MZN), Brucella: red, B. ovis & B. canis NO = blue

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4
Q

Humans can acquire brucellosis from raw milk.

A

T

raw milk or dairy products from unpasteurized milk: infected animals.

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5
Q

Europe is free from Brucella ovis

A

F

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6
Q

Undulant fever, malaise, inappetence, fatigue, and muscle and joint pains can be the clinical sings of human brucellosis.

A

T

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7
Q

Brucella species are generally zoonotic agents

A

T

  1. B. melitensis
  2. B. abortus
  3. B.suis
  4. B.canis

B. ovis = NOT ZOONOTIC

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8
Q

Brucella are facultative IC agents.

A

T

Facultative intracellular pathogens

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9
Q

Brucella is generally a notifiable disease

A

T

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10
Q

Among Brucella species Brucella melitensis is the most pathogenic species for humans.

A

T

  1. B. melitensis
  2. B. abortus
  3. B.suis
  4. B.canis
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11
Q

More than one serological test must be carried out from one serum sample at the same time in the case of serodiagnostics of brucellosis

A

T

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12
Q

Brucellosis is generally a notifiable disease.

A

T

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13
Q

Brucellosis is a chronic disease:

A

T

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14
Q

Brucella species are gram-negative, fastidious, coccoid rod-shaped bacteria

A

T

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15
Q

There is a serological relationship among some brucella species, because of the same polysaccharides in the cell wall

A

T

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16
Q

Worldwide distribution is characteristic for brucellosis

A

T

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17
Q

Köster staining is used for staining of brucellae

A

T

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18
Q

Brucella can be both acute or chronic in human

A

T

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19
Q

Brucella melitensis is endemic in Mediterranean area

A

T

Endemic :Middle-East, Central Asia, Latin America, Mediterranean Region

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20
Q

Brucella species are widely distributed all over the world.

A

T

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21
Q

Brucella species are serologically uniform

A

F

variations in antigenic structures among different Brucella species.

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22
Q

Brucella species need cysteine or cystine as an additive for the culture

A

F - Tularemia needs

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23
Q

Brucella species are not zoonotic agents.

A

F

B.ovis: not zoonotic

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24
Q

Susceptibility of humans to different Brucella species is different.

A

T

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25
Q

Consumption of raw milk is an important route of human Brucella infection

A

T

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26
Q

Brucella need chocolate agar to culture.

A

F

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27
Q

There is a close antigenic relationship between B. ovis and B. melitensis.

A

F

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28
Q

B. suis is a zoonotic agent.

A

T

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29
Q

Brucella ovis needs CO2 to culture.

A

T

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30
Q

Brucella are Gram-positive and Koster-positive bacteria

A

F

Gram - , koster + bacteria

31
Q

The antigens of Brucella are uniform.

32
Q

The majority of the Brucella species can infect humans.

33
Q

Brucella are not fastidious bacteria, they can be cultured on simple nutrient agar

34
Q

Brucella species are non-motile, Gram-negative, small coccoid rods

35
Q

There is a serological relationship among B. abortus, B. melitensis and B. ovis, because of the same surface polysaccharides

36
Q

There are no brucellosis-free countries in the world.

A

F

Free: Canada, Japan, Australia, New-Zealand, Israel
EU countries: most of them free

37
Q

Most of the Brucella species are zoonotic agents.

38
Q

There is close antigenic relationship between Brucella bovis and Brucella ovis.

39
Q

Brucella suis is a zoonotic agent.

40
Q

Brucella canis is stained red as a result of Koster-staining.

A

F

B. ovis & B. canis NO

41
Q

Brucella species are not fastidious bacteria, we can use nutrient agar in diagnostic work.

A

F

fastidious bacteria = specific nutritional requirements for growth

42
Q

There is a strong relationship in antigenic structure of Brucella canis and Brucella ovis.

43
Q

Fetus, fetal membrane and blood sample from the dam must be send to the diagnostic institute in abortion case.

A

T

fetus, fetal membranes (placenta), and blood samples from the dam

44
Q

Human brucellosis was described for the first time by David Bruce in Malta Island in 1886

45
Q

Brucella abortus stains red as a result of Koster-staining.

A

T

B. ovis & B. canis no

46
Q

There is a strong relationship in the antigenic structure of B. melitensis and B. suis

47
Q

All of the Brucella species are zoonotic agents.

A

F

B.ovis is not

48
Q

Vaccination is a regularly used prevention method in the brucellosis free countries of EU

49
Q

In the case of a same serum sample it is advisable to carry out more serological tests for the detection of antibodies against Brucella species, because different serological tests can show
different results

50
Q

Rev I. is an inactivated vaccine strain.

A

F

live vaccine

51
Q

There are no differences in serological features of Brucella species with veterinary importance.

52
Q

Brucella are facultative intracellular bacteria

53
Q

With Koster-staining all Brucella are positive.

54
Q

Sheep and goat are the reservoirs for Brucella

55
Q

Hungary is Brucella free.

56
Q

Humans are resistant to Brucella melitensis.

57
Q

Raw milk consumption can be the source of human brucellosis

58
Q

Vaccination against brucellosis is common in the EU

A

T-A but im unsure

59
Q

Attenuated vaccine strains can cause abortion in pregnant animals

60
Q

Focal necrosis and inflammation are seen in fetuses aborted due to Brucella

61
Q

Brucella is an obligate pathogen.

62
Q

Brucella are a notifiable disease.

63
Q

Brucella can be found on the mucous membranes of the genital tract.

64
Q

All Brucella can be stained with Koster staining.

65
Q

There will be cross-reactions between S-type colonies in case of Brucella

66
Q

Brucellosis is found in most parts of the world.

67
Q

In sexually immature animals, Brucella multiplies in the lymph nodes.

68
Q

Brucellosis is usually introduced by infected asymptomatic animals.

69
Q

Abortion caused by brucellosis is followed by retained fetal membranes.

70
Q

An attenuated vaccine is used in Hungary for prevention of B. melitensis.

A

F

not in eu - mostly free

71
Q

Brucella has average resistance

72
Q

Brucella is seen only in the northern hemisphere.

73
Q

Brucella species can propagate in the soil

A

F- but cant see in pq file

EPI Final PQ (49 decks)

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