Brucellosis - A Brief Overview: Part 01

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AC/0186/20

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1) Clinically the most important Brucella sp in domestic livestock are:

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B. pinnipedalis.

B. neotomae.

B. abortus, B. melitensis and B. suis.

B. microti and B. inopinata.

B. ceti and B. canis.

Clear selection

2) Brucella sp shows a tropism for:

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Astrocytes in the brain.

Trophoblastic cell in the placenta.

Myocardial muscle fibres.

Megakaryocytes in the bone marrow.

Parietal cells in the stomach.

Clear selection

3) Abortion in African buffalo has been associated with:

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B. abortus biovar 1.

B. abortus biovar 6.

B. abortus biovar 7.

B. melitensis.

B suis biovar 2.

Clear selection

4) A reservoir status for B. abortus with spillback into cattle has been documented in:

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Buffalo in Kruger National Park.

Reindeer in Alaska.

Alpine Ibex in French alps.

Feral hogs in Europe.

Elk in the Greater Yellowstone Area.

Clear selection

5) A positive serological response is indicative of:

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Exposure to Brucella sp

Exposure to certain biovars of Brucella sp.

Only active infections.

Only latent infections.

A confirmed diagnosis of brucellosis.

Clear selection

6) Brucellosis involves the following components of the immune system:

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The innate immune system .

Adaptive cell mediated immune response.

Adaptive humoral response.

CD4 and CD8 T-lymphocytes.

All of the above.

Clear selection

7) Infection in male animals may result in:

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Hepatic cirrhosis.

Penile prolapse.

Decreased libido.

Orchitis/epididymitis.

None of the above.

Clear selection

8) Brucella melitensis infection has been reported in:

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Camels in South Africa.

Goats in Kwa-Zulu Natal.

Goats in Zimbabwe.

Both B and C.

None of the above.

Clear selection

9) Vaccines against brucellosis are:

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Proven not to be effective.

Known to cause false positive results.

Known not to interfere with diagnostic tests.

Only effective in wildlife.

Composed of strains of B. suis.

Clear selection

10) The following diagnostic tests are direct tests:

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Direct staining.

Bacterial culture.

PCR.

All of the above.

Only B.

Clear selection

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