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PCR amplification of S. equi subsp. zooepidemicus DNA using internal primers to the superantigen genes szeF, szeN, and szeP. Lanes: SZ+, S. equi subsp. zooepidemicus isolate SzBHS5; SC, S. canis control; H2O, water control with no DNA added; SZ, S. equi subsp. zooepidemicus isolate from one dog (isolate SzBHS7).
