TABLE 1.
Comparison of percentage positive results in replicate tests (n = 6 per sample) of different categories of HBV NAT–yield samples in different ID- and MP-NAT options
| Clinical status | Donations | Number of tests | Ultrio
|
Ultrio plus
|
TaqScreen
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID-NAT
|
MP4
|
MP8
|
ID-NAT
|
MP4
|
MP8
|
MP6
|
||||||||||
| Positive | % | Positive | % | Positive | % | Positive | % | Positive | % | Positive | % | Positive | % | |||
| First WP | 22 | 132 | 110 | 83 | 78 | 59 | 75 | 57 | 123 | 93 | 105 | 80 | 93 | 70 | 111 | 84 |
| Vaccine breakthrough* | 10 | 60 | 44 | 73 | 30 | 50 | 27 | 45 | 51 | 85 | 40 | 67 | 35 | 58 | 38 | 63 |
| Second WP | 15 | 90 | 55 | 61 | 27 | 30 | 20 | 22 | 57 | 63 | 32 | 36 | 22 | 24 | 13 | 14 |
| OBI† | 29 | 174 | 87 | 50 | 51 | 29 | 30 | 17 | 129 | 74 | 78 | 45 | 48 | 28 | 68 | 39 |
| OBI a-HBs‡ | 28 | 168 | 91 | 54 | 58 | 35 | 40 | 24 | 120 | 71 | 78 | 46 | 56 | 33 | 66 | 39 |
| Unknown | 3 | 18 | 8 | 44 | 5 | 28 | 4 | 22 | 12 | 67 | 6 | 33 | 7 | 39 | 4 | 22 |
| All | 107 | 642 | 395 | 62 | 249 | 39 | 196 | 31 | 492 | 77 | 339 | 53 | 261 | 41 | 300 | 47 |
*
Probable vaccine breakthrough infections.
†
Anti-HBs–negative OBI.
‡
Anti-HBs–positive OBI.