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Performance of PhenoMatrix for the detection of Group B Streptococcus from recto-vaginal swabs
Claudio Foschi1, Gabriele Turello2, Tiziana Lazzarotto1
1Microbiology, DIMES, University of Bologna, Bologna, Italy; Microbiology Unit, IRCCS S.Orsola-Malpighi Hospital, Bologna, Italy.
Diagnostic Microbiology and Infectious Disease
|June 13, 2021
Abstract:
We assessed the performance of PhenoMatrix digital imaging software in detection of Group B Streptococcus from recto-vaginal swabs plated on a specific chromogenic medium, using the WASP automated processor. PhenoMatrix algorithm showed a sensitivity of 100% and a specificity of 64.5%. False-positive results were mainly due to commensal viridans streptococci.

