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Sample PCR results. Lanes 2 to 6 show the PCRs with DNA from five S. bovis biotype I strains obtained by using clone 51 primers (A), clone DS14 primers (B), clone 40 primers (C), and the 23S RNA positive control primers (D). Lanes 7 to 9 show the reactions of these primers with DNA from three biotype II strains. Lane 1 contains φX174/HaeIII DNA markers, and lane 10 contains the distilled water negative PCR control.
