Is Brucellosis contagious? correct answers Yes
What does Brucellosis cause? correct answers Abortion, retained placenta, placentitis, orchitis, epididymitis, infertility
Infections with Brucellosis are ____________ and ____________. correct answers Inapparent, chronic
Clinical signs for Br...
Brucella || with Complete Solutions.
Is Brucellosis contagious? correct answers Yes
What does Brucellosis cause? correct answers Abortion, retained placenta, placentitis, orchitis,
epididymitis, infertility
Infections with Brucellosis are ____________ and ____________. correct answers Inapparent,
chronic
Clinical signs for Brucellosis are mainly found in the ______________ tract of the natural host.
correct answers Reproductive
Brucella is difficult to isolate. What test do we use for diagnosis? correct answers Serology
Do we treat Brucellosis with antibiotics? correct answers Antibiotic use is unreliable
Is Brucellosis zoonotic? correct answers Yes
Which Brucella sp. are associated with classical brucellosis? correct answers Brucella abortus,
Brucella melitensis, Brucella suis
Classical brucellosis has _________ LPS. correct answers Smooth
Which Brucella sp. are associated with wild-type brucellosis? correct answers Brucella ovis,
Brucella canis
Wild-type brucellosis has _________ LPS. correct answers Rough
List the Brucella sp. that have the potential to infect humans in order from most infective to least
infective. correct answers 1. Brucella melitensis
2. Brucella suis
3. Brucella abortus
4. Brucella canis
What is the morphology of Brucella? correct answers Small, gram-negative rods
Why do we not normally use culture for detection of Brucella? correct answers Slow growth,
requiring 3-5 days to 3 weeks for isolation; bacteremia is variable
Brucella is an __________ parasite. correct answers Obligate
Are Brucella spp. host-specific? correct answers Yes
What tissues does Brucella have a predilection for? correct answers Ungulate placentas, testes of
bulls, rams, boars and dogs
, Brucella is excreted in ________ ________ and _________ __________. correct answers Body
fluids, aborted tissues
Does Brucella survive well in the environment? correct answers Yes, remains viable in milk,
water, damp soil for weeks to months
Can Brucella survive freeze/thaw? correct answers Yes
Can Brucella survive pasteurization? correct answers No
How is Brucella transmitted? correct answers Direct/indirect contact with infected excretors,
ingestion, inhalation, coitus, artificial insemination
What are the sources of transmission for Brucella for an infected cow? correct answers Fetal
membranes, aborted fetus, genital discharges, colostrum/milk, feces/urine
What are the sources of transmission for Brucella for an infected bull? correct answers Semen,
feces, urine
What is the primary route of infection for Brucella? correct answers Ingestion
What are other routes of infection by Brucella, besides ingestion? correct answers Venereal, via
conjunctiva, by inhalation, congenital
In the first week of Brucella infection... correct answers Entry across skin or mucosa,
phagocytize and begins intracellular multiplication in local or regional lymph nodes
Is Brucella intracellular or extracellular? correct answers Intracellular
During the second week and onwards of Brucella infection... correct answers Intracellular
localization in cells of target organs (particularly within the ER)
What are the target organs for Brucella? correct answers Uterus, placenta, fetus, seminal
vesicles, testes, epididymis, parenchymous organs, mammary glands
What sugar is present in the placenta and male genital tract of ungulates that stimulates growth of
brucellae? correct answers Erythritol
What type of bacteremia is seen in Brucellosis infections? correct answers Variable
What happens in females infected with Brucella? correct answers Usually abort only once but
remain infected and shed large numbers of brucellae at subsequent parturitions
What happens in rams and male dogs infected with Brucella? correct answers Permanent
infertility
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