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Table 3 Distribution of phenotypic and genotypic characteristics among the 18 macrolide-resistant Streptococcus agalactiae isolates included in the present study

From: Streptococcus agalactiae in Brazil: serotype distribution, virulence determinants and antimicrobial susceptibility

Isolate City of origina Serotype Phenotypeb Genotypec
ermA ermB mefA
4676 Rio de Janeiro Ia iMLSB + - -
4677 Rio de Janeiro Ia M + - -
4583 Rio de Janeiro NTd cMLSB - + -
4740 Rio de Janeiro III cMLSB - - -
4714 Rio de Janeiro II cMLSB - - -
4835 Rio de Janeiro II M + - -
5008 Rio de Janeiro III cMLSB - + -
4619 Rio de Janeiro NTd cMLSB - - -
282 Rio de Janeiro II cMLSB - - -
4971 Rio de Janeiro Ia cMLSB - + -
907 Rio de Janeiro II cMLSB - - -
1196 Rio de Janeiro Ib cMLSB - - -
4501 Porto Alegre III M + - -
4555 Porto Alegre Ia cMLSB + - -
4732 Brasília Ia cMLSB - + -
4736 Brasília Ia cMLSB - + -
6717 Recife V iMLSB + - -
8134 Manaus Ib cMLSB + - -
  1. aRio de Janeiro is located in the Southeast region; Porto Alegre is located in the South region; Brasilia is located in the Mid-West; Recife is located in the Northeast and Manaus is located in the North region.
  2. bcMLSB: constitutive macrolide-lincosamide-streptogramin B resistance phenotype; iMLSB: inducible macrolide-lincosamide-streptogramin B resistance phenotype; M: macrolide resistance phenotype.
  3. c erm: erythromycin ribosome methylation; mef: macrolide efflux.
  4. dNT, nontypeable by using antisera against Ia, Ib, II-VIII serotypes.