“…The rates of tracing recipients, and identifying infections, are broadly similar–or within variations to be expected due to different methods–in other published lookbacks and our own. We report identifying 1 HCV infection for every 12 components entering lookback: 1 infection per 9, 10, and 21 components has been reported from Scotland, 2 Northern Ireland, 3 and Canada, 4 respectively. We report identifying 1 HCV infection for every 8 recipients identified: 1 infection per 2, 4, 5, 5, 6, 8, and 22 5 recipients identified has been reported from Eire, 7 Scotland, Northern Ireland, New Zealand, 5 Canada, Denmark, 6 and The Netherlands (for PCR‐positive donors only), 8 respectively.…”