The average CT values were 34.5 and 34.8, and the median CT values were 36.3 and 37.4 in cases and controls respectively (see distribution in Figure 1 ). The majority of HBoV-positives in both cases and controls had copy numbers ranging between 30 and 299 copies/reaction (or between 4.5610 3 and 4.5610 4 copies/ml of feaces). The distribution of HBoV viral loads between cases and controls was comparable and the median CT values between cases and controls were not significantly different (U-test; z = 0.458139, p.0.05).