The Medical Research Council wrote a letter regarding an ad hoc meeting on non-A non-B Hepatitis to discuss the seriousness of the infection, and the need for research and studies to identify non-A non-B Hepatitis and develop a test. Middlesex Hospital Medical School then wrote to the DHSS noting that non-A non-B Hepatitis might be a problem for people who did not have haemophilia, but had received a transfusion and that it would be logical to co-opt any studies with PHLS.