9.Vibrio, Campylobacter, Lawsonia, Helicobacter, Arcobacter, Spirochaetes. Bacteriological examination of pathological samples I.

Question 1

Morphology of vibrio species are curved rods, with flagella.

Answer 1

T

Question 2

Campylobacter jejuni can cause diarrhoea in humans.

Answer 2

T

Question 3

Lawsonia intracellularis can be cultured on enterocyte cell culture.

Answer 3

T

Question 4

Heliobacter pylori can cause chronic gastritis and ulcer in humans.

Answer 4

T

Question 5

Spirochaetes have characteristic morphology, thin helical filaments.

Answer 5

T

Question 6

Campylobacter species can tolerate 4-6% oxygen.

Answer 6

T

Question 7

Borrelia burgdorferi can cause Lyme-disease in humans.

Answer 7

T

Question 8

Brachyspira hyodysenteriae is an obligate aerobic bacterium.

Answer 8

F

Question 9

Human syphilis is caused by Treponema pallidum.

Answer 9

T

Question 10

Maintenance host of Leptospira sejroe is cattle.

Answer 10

F (mouse)

Question 11

Vibrio species can be cultured in alcalic environment (pH 8.6).

Answer 11

T

Question 12

Human cholera is caused by Vibrio parahaemolyticus.

Answer 12

False, (vibrio cholera)

Question 13

Campylobacter species are aerobic, facultative anaerobic bacteria

Answer 13

False, (microaerophilic)

Question 14

Campylobacter fetus spp. venerealis can cause abortion in sheep

Answer 14

False, (cause cattle abortion/infertility)

Question 15

Swine proliferative enteropathies are caused by Lawsonia intracellularis.

Answer 15

T

Question 16

. Heliobacter species are urease-negative bacteria.

Answer 16

False, (urease positive)

Question 17

Spirochaetes are non-motile bacteria

Answer 17

False, (periplasmic flagella)

Question 18

Borrelia species can be cultured on chocolate agar

Answer 18

False, (giemsa, fuchin and unstained)

Question 19

Maintenance host of Leptospira ichterohaemorrhagiae is rat.

Answer 19

T

Question 20

Leptospira hardjo can cause abortion in cattles.

Answer 20

True (also in sheep)

Question 21

Causative agent of swine dysentery has 9 serogroups.

Answer 21

T (silje sier false 11)

Question 22

B. anserina causes rabbit syphilis.

Answer 22

False, (by T. paraluiscuniculi)

Question 23

Leptospira species causes leptospirosis in cattle.

Answer 23

T (in calves)

Question 24

Helicobacter can cause gastritis.

Answer 24

T

Question 25

Treponema pallidum is a zoonotic agent

Answer 25

T (silje sier F)

Question 26

Heliobacter species are bacteria.

Answer 26

T

Question 27

Lyme-disease is caused by Brachyspira

Answer 27

False, (by Borrelia burgoferi, B. afzelii, B. garinii)

Question 28

Brachyspira are obligate anaerobic bacteria.

Answer 28

T

Question 29

The causative agent of swine dysentery can show haemolysis on blood agar.

Answer 29

T

Question 30

Leptospirosis of dogs is mainly caused by L. grippotyphosa.

Answer 30

False, (leptospirosa interrograns serovar canicola)

Question 31

Leuaditi´s silver impregnation is an appopiate staining method for Leptospira species.

Answer 31

T

Question 32

Vibrio species are microaerophilic bacteria

Answer 32

False, (facultative anaerobic)

Question 33

For the selective culture of Campylobacter species obligate vancomycin-polymyxin-trimethoprim is used.

Answer 33

T