Which of the following is the predominant flora of the mouth?
Correct Answer: Streptococcus mutans
Description: The eruption of teeth at 6 to 9 months of age leads to colonization by organisms such as Streptococcus mutans and S. sanguis, both a-hemolytic streptococci. An edentulous person loses a-hemolytic streptococci as normal flora. The predominant bacteria on the skin surface are S. epidermidis and Propionibacterium, an anaerobic diphtheroid.
Category:
Microbiology
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