Bacterial species which is protective or beneficial to the host is_______________?
Correct answer: A. Streptococcus sanguis
- A. Streptococcus sanguis
- B. Porphyromonas gingivalis
- C. Treponema denticola
- D. Spirochetes
Explanation
Streptococcus sanguis, now commonly called Streptococcus sanguinis, is part of the relatively harmless early oral flora and may help limit colonisation by pathogens. Porphyromonas gingivalis and Treponema denticola are linked to periodontal disease.
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