FIG. 2.
Bar graph showing the prevalence of PapRV2 in PBMCs from 100 baboons by using TaqMan screening with the indicated primers. Animals were counted positive if the real-time quantitative DNA-PCR signal of 106 cells was significant and a band was visible on an agarose gel. For comparison, the prevalence of SV40 and BaCMV is also reported. All animals were PCR positive for baboon chymotrypsin.