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).