Letter from Professor Bloom to DHSS re introduction of FDAapproved tests for HTLV3 and the need to inform donors of results includes charts for the introduction of such tests Expresses anxiety that not only haemophiliacs receiving cryoprecipitate but also other gorups such as patients undergoing open heart surgery or with acute leukaemia could be at a real risk of infection by HTLVIII therefore one or more of the FDA approved tests should be introduced immediately to test donations DT