Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification

Nuntra Suwantarat; Maureen Grundy; Mayer Rubin; Renee Harris; Jo Anne Miller; Mark Romagnoli; Ann Hanlon; Tsigereda Tekle; Brandon C. Ellis; Frank R. Witter; Karen C. Carroll

doi:10.1128/JCM.02363-15

Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification

Nuntra Suwantarat, Maureen Grundy, Mayer Rubin, Renee Harris, Jo Anne Miller, Mark Romagnoli, Ann Hanlon, Tsigereda Tekle, Brandon C. Ellis, Frank R. Witter, Karen C. Carroll

School of Medicine

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Abstract

During a 14-month period of using matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) for group B streptococcus (GBS) identification, we recovered 32 (1%) Streptococcus pseudoporcinus isolates from 3,276 GBS screening cultures from female genital sources (25 isolates from pregnant women and 7 from nonpregnant women). An additional two S. pseudoporcinus isolates were identified from a urine culture and a posthysterectomy wound culture. These isolates were found to cross-react with three different GBS antigen agglutination kits, PathoDx (Remel) (93%), Prolex (Pro-Lab Diagnostics) (38%), and Streptex (Remel) (53%). New approaches to bacterial identification in routine clinical microbiology laboratories may affect the prevalence of S. pseudoporcinus.

Original language	English (US)
Pages (from-to)	3926-3930
Number of pages	5
Journal	Journal of clinical microbiology
Volume	53
Issue number	12
DOIs	https://doi.org/10.1128/JCM.02363-15
State	Published - Dec 2015

ASJC Scopus subject areas

Microbiology (medical)

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Suwantarat, N., Grundy, M., Rubin, M., Harris, R., Miller, J. A., Romagnoli, M., Hanlon, A., Tekle, T., Ellis, B. C., Witter, F. R., & Carroll, K. C. (2015). Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification. Journal of clinical microbiology, 53(12), 3926-3930. https://doi.org/10.1128/JCM.02363-15

Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification. / Suwantarat, Nuntra; Grundy, Maureen; Rubin, Mayer et al.
In: Journal of clinical microbiology, Vol. 53, No. 12, 12.2015, p. 3926-3930.

Research output: Contribution to journal › Article › peer-review

Suwantarat, N, Grundy, M, Rubin, M, Harris, R, Miller, JA, Romagnoli, M, Hanlon, A, Tekle, T, Ellis, BC, Witter, FR & Carroll, KC 2015, 'Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification', Journal of clinical microbiology, vol. 53, no. 12, pp. 3926-3930. https://doi.org/10.1128/JCM.02363-15

Suwantarat N, Grundy M, Rubin M, Harris R, Miller JA, Romagnoli M et al. Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification. Journal of clinical microbiology. 2015 Dec;53(12):3926-3930. doi: 10.1128/JCM.02363-15

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abstract = "During a 14-month period of using matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) for group B streptococcus (GBS) identification, we recovered 32 (1%) Streptococcus pseudoporcinus isolates from 3,276 GBS screening cultures from female genital sources (25 isolates from pregnant women and 7 from nonpregnant women). An additional two S. pseudoporcinus isolates were identified from a urine culture and a posthysterectomy wound culture. These isolates were found to cross-react with three different GBS antigen agglutination kits, PathoDx (Remel) (93%), Prolex (Pro-Lab Diagnostics) (38%), and Streptex (Remel) (53%). New approaches to bacterial identification in routine clinical microbiology laboratories may affect the prevalence of S. pseudoporcinus.",

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Recognition of streptococcus pseudoporcinus colonization in women as a consequence of using matrix-assisted laser desorption ionization-time of flight mass spectrometry for Group B streptococcus identification

Abstract

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