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Table 1 The prevalence and levels of B19V DNA in plasma pools for fractionation from two blood product manufacturers

From: Parvovirus B19V DNA contamination in Chinese plasma and plasma derivatives

Manufacturer

Positive lots/lots tested (%)

B19V DNA (geqmL) among positive lots

≥ 104

≥ 103

≥ 102

Log geq ± SEM

 Company A

24/80 (30%)

7

9

8

3.96 ± 1.67

 Company B

53/62 (85.5%)

26

26

1

4.79 ± 1.77

  Total

77/142 (54.2%)

33

35

9

4.95 ± 1.67

  1. SEM standard error of log geomean.
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