Dr Harold Gunson reported that, of 24 male donors who were found seropositive in 1989, 14 were "established donors". Linked evidence NHBT0015578_001 - AntiHIV 1 Testing of Blood Donations in the UK - 19 Feb 1990 Chronology Information Date: 19 February 1990 Chapter/issue HIV Lookback Key Person(s) Dr Harold H Gunson