Importance of minimizing carry-over effect at subculture in the detection of penicillin-tolerant viridans group streptococci.
AUTOR(ES)
Dankert, J
RESUMO
Penicillin susceptibility determinations made for 14 strains of Streptococcus mitior by two different broth dilution tests revealed small numbers of tolerant strains regardless of the volumes (0.01 and 0.1 ml) of subcultured broth. The addition of penicillinase to the subculture medium increased the number of tolerant strains significantly in 0.1 ml of subcultured broth, demonstrating that the detection of penicillin-tolerant viridans group streptococci might be hampered by the carry-over of penicillin.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=184711Documentos Relacionados
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