The anaerobic, gram-negative curved, motile bacilli associated with bacterial vaginosis belong to which genus?

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Prepare for the Clinical Laboratory Science Bacteriology Test. Engage with multiple choice questions and flashcards with helpful hints and explanations. Ace your exam confidently!

Multiple Choice

The anaerobic, gram-negative curved, motile bacilli associated with bacterial vaginosis belong to which genus?

Explanation:
The main idea is recognizing which organisms are linked to bacterial vaginosis by their distinctive shape and oxygen needs. Mobiluncus are anaerobic, gram-negative curved, motile bacilli that are commonly associated with BV and help distinguish this condition from a normal vaginal flora dominated by lactobacilli. Actinomyces are gram-positive filamentous bacteria, not the curved, motile anaerobes linked to BV. Bifidobacterium are gram-positive anaerobic rods and not typically tied to BV. Lactobacillus are gram-positive rods that usually predominate in a healthy vagina and are not the curved, motile anaerobes described here. Therefore, the genus is Mobiluncus.

The main idea is recognizing which organisms are linked to bacterial vaginosis by their distinctive shape and oxygen needs. Mobiluncus are anaerobic, gram-negative curved, motile bacilli that are commonly associated with BV and help distinguish this condition from a normal vaginal flora dominated by lactobacilli. Actinomyces are gram-positive filamentous bacteria, not the curved, motile anaerobes linked to BV. Bifidobacterium are gram-positive anaerobic rods and not typically tied to BV. Lactobacillus are gram-positive rods that usually predominate in a healthy vagina and are not the curved, motile anaerobes described here. Therefore, the genus is Mobiluncus.

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