KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Streptococcus mutans bacteria, computer illustration. Streptococcus bacteria are an example of cocci (round bacteria) that form chains. There are over 50 species of Streptococcus bacteria, some of which cause disease in humans. S. mutans takes part in development of dental caries.
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