BRUCELLOSIS

Question 1

other term for brucellosis

Answer 1

bang’s dz

Question 2

agent of brucellosis

Answer 2

b. abortus in catt;e
b. melitensisn in sheep
b. ovis in sheep

Question 3

strain of brucella not zoonotic

Answer 3

b. ovis

Question 4

principle manifestation of brucella

Answer 4

Reproductive failure in males and females

Question 5

where is brucella found

Answer 5

placenta

Question 6

MOT of brucellosis

Answer 6

Horizontal
Ingestion
intact skin penetration
conjunctiva
udder contamination via milking
coitus / AI
Vertical

Question 7

where do bacteria multuply in brucellosis

Answer 7

phagocytes

Question 8

infected phagocytes invade what organs

Answer 8

spleen, LN, mammary gland, uterus

Question 9

substance normally produced by the fetus stimulates growth of Brucella sp.

Answer 9

Erythritol

Question 10

in pregnants brucella involves ulceration of the endometrium then ___

Answer 10

cotyledon and villi

Question 11

presence of leathery plaques on the chorion’s
external surface

Answer 11

brucellosis

Question 12

Hygromas on the knees , stifles, hock etc
Retained placenta
-Infertility

Answer 12

brucellosis

Question 13

Differential diagnoses for brucellosis

Answer 13

-Trichomoniasis
-Listeriosis
-Leptospirosis
-Mycoses
-Nutritional problems

Question 14

t.f Vaccination program that target cattle against
B. abortus have proved effective but trying to
control B. melitensis in sheep and goats is much
more difficult

Answer 14

t

Question 15

brucella targets _____ in pregnant while ____ in non pregnant

Answer 15

Pregnant uterus, fetus, fetal membranes
Non pregnant: udder or mammary gland - source of infection

Question 16

manifestation of brucella in humans

Answer 16

undulant fever

Question 17

t/f Risk is lower if the semen is used in AI vs embryo transfer

Answer 17

f. higher

Question 18

Those who recovered from. brucella can still breed but are considered __ of the dz

Answer 18

reservoirs

Question 19

charac of b. abortus

Answer 19

Gram -, coccobacilli

Question 20

serological technique for brucella

Answer 20

Rose bengal test: large scale screening of sera from buffaloes/carabaos
Principle: serum has Ab against brucella = agglutination

Question 21

t.f tx are successful inability to penetrate cells since intracellular

Answer 21

f unsuccessful

Question 22

quarantine length for brucella +

Answer 22

120 days to 1 yr unless there’s a way of testing animals

Question 23

source of infection of b. ovis in nz and aus

Answer 23

infected ram

Question 24

how is brucella transmitted between rams

Answer 24

Passive venereal infection
—-> Ram mated with female → another ram mated with that female → infection from ram is passed via female reproductive tract
Occurs in breeding season

—-> Direct ram-to-ram transfer (if not during breeding season)
Sniffing of prepuce

Question 25

tx for b. ovis

Answer 25

oxytet
Dihydrostreptomycin sulfate
Culling of rams in small commercial flocks
Scrotal palpation
Cull those with orchitis
Vaccination
B melitensis strain rev 1

Question 26

manifestation of b melitensis in humans

Answer 26

mediterranean fever or malta

Question 27

b. melitensis mode of infection

Answer 27

Via milk and reproductive tract

Question 28

re highly susceptible in b.melitensis

Answer 28

goat and sheep

Question 29

brucella strain that is High risk of bioterrorism/agroterrorism

Answer 29

b. melitensis