del 5

Question 1

62. Rhodococci:
    a. Are capsulated G+, non-motile bacteria, coccal transformation is typ for R.
    b. R-equi produces an endotoxin called equi factor.
    c. R.equi causes pyogenic glomerulonephritis in horse.
    d. R.equi can cause ulcerative colitis and mesenteric lymphadenitis in foals.

Answer 1

T: a, d
F: b, c

Question 2

Coxiella burnetir
a. It is transmitted by dust and also by blood sucking insect
b. It is strictly an intracellular microorganism and causes a zoonotic disease called Q fever
c. The infection is manifested by the formation of abscesses of parenchymous organs and nervous symptoms
d. It survives in the external environment in the form of spore-like formations

Answer 2

T: a, b, c, d

Question 3

Campylobacters:
a. C. jejuni and C. coli cause proliferative enteropathy in pigs
b. Strains causing acute diarrhoeal diseases produce a cytotoxin similar to cholera toxin
c. Are Gram-positive bacteria that are curved, motile only at lower temperatures
d. C. fetus spp. fetus and C. fetus spp. venerealis belongs to the group of thermophilic campylobacters.

Answer 3

T: b
F: a, c, d

Question 4

Borrelia burgdorferi sensu lato:
a. is included to family spirochetataceae, together with leptospira and treponemas.
b. Persistance and replacment of OspA antigen (tick)→OspCantigen(host) applies during pathogenesis of infection.
c. Over 15 genospecies are included to this genus acc to genetic, phenotypic and immunological properties.
d. B. garinii and B. afzelii are imp species of the genus Borrelia.

Answer 4

b. Persistance and replacment of OspA antigen (tick)→OspCantigen(host) applies during pathogenesis of infection.
d. B. garinii and B. afzelii are imp species of the genus Borrelia.

family borreliaceae
at leat 20 genospecies - DNA molecular technoiques

Question 5

Genus leptospira:
a. L.icterohemorrhagiae is pathogenic and includes 250 serotypes.
b. Main pathogenic feauture is endothel damage.
c. L.borgpetersenii is one of the 17 genospecies of this genus.
d. Leptospiras are divided into 12 serogroupes marked alphabetically.

Answer 5

T: b, c
F: a, d

Question 6

Rickettsiae:
a. Belong to microorganisms which are transmitted by vectors – arthropods.
b. Are not able to synthesize macroenergetic substances and therefore as intracellular parasites use the hostcells.
c. Multiplicate mainly in the cytoplasm of Phagocytic cells.
d. Epidemic spotted typhus is transmitted from man to man by flea.

Answer 6

T: a, b, c
F: d

Question 7

Genus Haemophilus
a. Hemophili are invasive bacteria with a high penetration capacity into the submucosa of respiratory tract
b. Haemophilus influenzae requires the presence of growth factors X and V, it is a commensal of the respiratory tract
c. Among the virulence factors, the bacteria use in particular a capsule, fimbriae and a ciliostatic endotoxin
d. Haemophilus parasuis is a causative agent of Glässer’s disease of pigs (polyserositis)

Answer 7

T: b, c, d
F: a