Figure 1.

A graph illustrating the species distribution of the oral streptococci isolates included in this study. The isolates that tested PCR negative for the presence of tet(M), Int and Xis genes are shown in green whereas isolates that were PCR positive for tet(M), Int and Xis genes are illustrated in red. The blue bars indicate isolates that only tested positive for Int and Xis. S.sp*; other streptococcal species including S. anginosus, S. constellatus and S. intermediate and member of the S. milleri group