Fig. 5.

(a) Cyclosporine treated patients at the time of sampling. Positive nucleic acid tests regardless of viral load, as a function of time on cyclosporine. (b) Cyclosporine treated patients at the time of sampling. BK viruria more than 10⁷ copies/mL and CMV of 10³ or more copies/mL – generally accepted as “dangerous” viral loads – considered as positve.