Figure 2.

Mean percentage (±standard deviation) of the total DNA probe count of the 40 test species in subgingival biofilm samples from 165 AS of generalized aggressive periodontitis distinguished according to positivity for detection of HSV-1 (HSV+), EBV (EBV+), CMV (CMV+) or no Herpesvirus (HHV−) specific sequences. Significance of differences for each species between AS of HSV+, or EBV+, or CMV+, and HHV− sites is indicated by replicating the symbol corresponding to each category at the top of the plot. Species were ordered and grouped according to the complexes described by Socransky et al., 1998 (28).