Table 4. Nondetection of HEV RNA based on retrospective investigations for apheresis donors, in which indicated donations are individually retested for HEV RNA, England, March 2016 to–December 2020.
| Year(s) | Screening |
Previous donations |
||||
|---|---|---|---|---|---|---|
| No. apheresis donations screened | No. HEV RNA–positive donations | No. retrospectively tested | No. HEV RNA–positive donations identified by retesting | No. components produced and supplied for clinical use | ||
| 2016–2017 | 144,027 | 44 | 35 | 2 | 4 | |
| 2018 | 70,709 | 24 | 24 | 3 | 6 | |
| 2019 | 68,907 | 15 | 14 | 2 | 4 | |
| 2020 | 66,680 | 24 | 25 | 2 | 4 | |
| Total | 350,323 | 107 | 98 | 9 | 18 | |