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PCR analysis of eight different C. suis strains using primers specific for tet(C) (525 bp) (A), tetR(C), (400 bp) (B), IScs605 (500 bp) (C), and the inv-like gene (D to F). The PCR products of the inv-like gene represent a 3′ fragment (200 bp) (D), a 5′ fragment (700 bp) (E), and a fragment that spans the inv-like sequence that is contiguous in the Tcs strain S45 (900 bp) (F). All primers used in these experiments are listed in Table 2.
