A.I.D.S. Risk Low (Press, 11 April 1985)

On 11 April 1985, the New Zealand Health Department reported a low percentage of haemophiliacs exposed to the Aids virus through blood products compared to other countries. Dr Keith Ridings, chairman of the transfusion advisory committee, indicated that only about 11 per cent of tested haemophiliacs had the H.T.V.L. 3 antibody, which is linked to Aids. Out of 121 blood samples processed, 13 tested positive for the antibody. The Health Department awaited results from an additional 80 tests from Australia. In comparison, higher exposure rates were reported abroad, with 40 per cent in Australia and between 70 to 80 per cent in the United States. Dr Ridings noted that exposure to the virus could have occurred over the last three years, as it takes time for antibodies to develop post-exposure. While there had been no locally contracted Aids cases in New Zealand, five cases had been documented, all originating from overseas infections. The establishment of a comprehensive blood donor screening system was still in the pipeline, and two types of Aids screening were presently being evaluated, with three more types under consideration. The anticipated cost of these tests ranged from $3.50 to $8.60 each. Dr Ridings mentioned that a manual screening process had been operational for some time and appeared effective. Donors classified in the “at risk” category could indicate this on a mandatory form, allowing their blood to be redirected for research purposes. A backup card system also functioned effectively; it allowed donors to revise their risk status up to 24 hours post-donation if the donor felt pressured at the time of giving blood. Notably, many individuals across various centres had called back within this timeframe to disclose their at-risk status. The Health Department was waiting for policy and financial clearance to launch a campaign aimed at preventing the spread of Aids in the country. Dr Ridings expressed positive feedback regarding a recent television programme that effectively detailed the nature of the Aids virus and related issues, asserting it as one of the best-produced segments on the topic. He suggested that Television New Zealand should consider airing the programme again for broader public education on the matter.

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