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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 2

Molecular characterization of Streptococcus equi subspecies zooepidemicus isolates by sequencing of the SzP protein gene and by multilocus sequence typing*

Isolate ID no. Origin Year Stable MLST
sequence type SzP
type SzP GenBank
accession no.
Hum1 Patient 1, blood 2011 A ST-10 I AF519489
Hum2 Patient 2, blood 2011 H ST-10 I AF519489
Hum3
Patient 3, aortic wall
2011
Not done
ST-209
VII
AF519488
642/11 Horse, nasal swab, nonclinical 2011 A ST-147 IV AF519482
645/11 Horse, nasal swab, nonclinical 2011 A ST-175 II AFKC287220†
646/11 Horse, nasal swab, nonclinical 2011 A ST-66 V AFKC287221†
647/11 Horse, nasal swab, nonclinical 2011 A ST-175 II AFKC287220†
648/11 Horse, nasal swab, nonclinical 2011 A ST-10 I AF519489
744/11 Horse, nasal swab, nonclinical‡ 2011 C ST-80 VIII U04620
1128/11 Horse, foal, sepsis 2011 B ST-5 VI AFKC287222†
627/11 Horse, nasal swab, nonclinical‡ 2011 C ST-115 III AF519478
6939/10 Horse, nasal swab, nonclinical‡ 2010 D ST-201 VII AF519488
8110/09 Horse, synovial fluid (arthritis) 2009 E ST-299† III AF519478
7723/09 Horse, foal, tracheal fluid, respiratory infection§ 2009 F ST-XX†¶ III AF519478

*ID, identification; MLST, multilocus sequence typing.
†Not previously described.
‡The samples were collected for screening of S. equi subsp. equi, but S. equi subsp. zooepidemicus was identified.
§Co-infection with Pasteurella sp. and S. suis.
¶Recorded in the PubMLST database: 8 (arcC)–52 (nrdE)–2 (proS)–14 (spi)–1 (tdk)–22 (tpi)–n/a (yqiL).

Main Article

1These authors contributed equally to this article.

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