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Volume 19, Number 7—July 2013

CME ACTIVITY

Transmission of Streptococcus equi Subspecies zooepidemicus Infection from Horses to Humans

Sinikka Pelkonen1Comments to Author , Susanne B. Lindahl1, Päivi Suomala, Jari Karhukorpi, Sakari Vuorinen, Irma Koivula, Tia Väisänen, Jaana Pentikäinen, Tiina Autio, and Tamara Tuuminen
Author affiliations: Finnish Food Safety Authority Evira, Kuopio, Finland (S. Pelkonen, T. Autio); National Veterinary Institute, Uppsala, Sweden (S.B. Lindahl),; Swedish University of Agricultural Sciences, Uppsala (S.B. Lindahl); Eastern Finland Laboratory Centre Joint Authority Enterprise, Mikkeli, Finland (P. Suomala, T. Tuuminen); Eastern Finland Laboratory Centre Joint Authority Enterprise, Joensuu, Finland (J. Karhukorpi); Eastern Finland Laboratory Centre Joint Authority Enterprise, Kuopio (J. Pentikäinen); Mikkeli Central Hospital, Mikkeli (S. Vuorinen); Kuopio University Hospital, Kuopio (I. Koivula, T. Väisänen); University of Helsinki, Helsinki, Finland (T. Tuuminen)

Main Article

Table 1

Bacteriologic identification of Streptococcus equi subspecies zooepidemicus isolates from patient samples in different ISLAB laboratories*

Isolate (patient, source) APIStrep† STR Rapid ID32† Agglutination with group serum specimens VITEK2 GP-ID† AccuProbe
Hum1 (patient 1, CSF) 0063607 (99.9% S. zooepidemicus) 15412061151 (99.9% S. zooepidemicus) Group C Not done Not done
Hum2 (patient 2, blood) Not done 15412061151 (99.9% S. zooepidemicus) Group C 053450364317451 (99% S. zooepidemicus) Streptococcus agalactiae‡
Hum3 (patient 3, abdominal aortic wall) Not done 15512061111 (99.9% S. zooepidemicus) Group C Not done Not done

*ISLAB, Eastern Finland Laboratory Centre Joint authority Enterprise; CSF, cerebral spinal fluid.
†bioMérieux, Marcy l’Etoile, France.
S. agalactiae (315,588 reflective light units, the reference range below 50,000 reflective light units). S. agalactiae and S. zooepidemicus are known to cross-react in the AccuProbe Group B Streptococcus Culture ID Test (Gen-Probe, San Diego, CA, USA).

Main Article

1These authors contributed equally to this article.

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