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CoNS bacteria , which are represented by the Staphylococcus epidermidis ( S . epidermidis ) and Streptococcus spp . are indigenous bacteria and often cause contamination in assays of pathogens .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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