Table 1 Distribution of the B19V DNA load in source plasma pools
From: Prevalence of human parvovirus B19 in Chinese plasma pools for manufacturing plasma derivatives
B19V DNA load (IU/mL) | Number of lots (%) | |||
|---|---|---|---|---|
Manufacturer A | Manufacturer B | Manufacturer C | Total | |
109 ~ 1010 | 1 (0.71) | 0 | 1 (1.35) | 2 (0.85) |
108 ~ 109 | 7 (4.96) | 2 (10.00) | 1 (1.35) | 10 (4.26) |
107 ~ 108 | 4 (2.84) | 4 (20.00) | 2 (2.70) | 10 (4.26) |
106 ~ 107 | 5 (3.55) | 2 (10.00) | 9 (12.16) | 16 (6.81) |
105 ~ 106 | 19 (13.48) | 4 (20.00) | 8 (10.81) | 31 (13.19) |
104 ~ 105 | 36 (25.53) | 5 (25.00) | 5 (6.76) | 46 (19.57) |
Positive ~ 104 | 32 (22.70) | 3 (15.00) | 19 (25.68) | 54 (22.98) |
Number of positive lots | 104 (73.76) | 20 (100.00) | 45 (60.81) | 169 (71.91) |
Number of negative lots | 37 (26.24) | 0 | 29 (39.19) | 66 (28.09) |
Number of lots tested | 141 | 20 | 74 | 235 |