Our experience in this country is that delay in recognising the disease makes notification of very little help in tracing the source of infection. As my hon. Friend probably knows, the disease is not normally transmitted from man to man but is the result of contact with infected animals or by drinking infected milk. The best way to deal with it is by routine examination of untreated milk. However, in view of what my hon. Friend has said, I will ask my right hon. Friend to look at our arrangements again.