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Agarose/ethidium bromide gel electrophoresis of products amplified by long RT-PCR using RNA extracted from a bovine fecal specimen positive for Breda virus-1 (BRV-1) and primers flanking the torovirus nucleocapsid and peplomer genes. Lane marked N represents a negative control (ddH2O). DNA mass ladder (M) and lambda HindIII (λ) were used as molecular size markers.
