Actinomyces viscosus, a ubiquitous actinomycete, grows under micro-aerophilic or

Question

Actinomyces viscosus, a ubiquitous actinomycete, grows under micro-aerophilic or strict anaerobic conditions and produces a yellow-orange granule in the typical tissue exudates. It is best described by which of the following?

a. An anaerobic, filamentous bacterium that often causes cervicofacial osteomyelitis

b. A -hemolytic organism that causes a diffuse, rapidly spreading cellulitis

c. A facultative anaerobe that is highly cariogenic and sticks to teeth by synthesis of a dextran

d. A facultative anaerobe that often inhabits the buccal mucosa early in a neonate’s life and can cause bacterial RF

e. A facultatively anaerobic, rod-shaped bacterium that sticks to teeth and is cariogenic, commonly involved in problems involving dental procedures, trauma to or surgery of the oral cavity, or aspiration

Explanation / Answer

e. A facultatively anaerobic, rod-shaped bacterium that sticks to teeth and is cariogenic, commonly involved in problems involving dental procedures, trauma to or surgery of the oral cavity, or aspiration.

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