Chronic lead intoxication mimicking motor neurone disease.

a sexual contact by gonorrhoea patients is a valid candidate for the procedure known as " epidemiologic treatment " even when cultures (which may miss 20%, or more of such gonococcal infections) are negative. If chemotherapy is adequate, a link in a chain of infection may thus be broken. A patient who would refuse a diagnosis of venereal disease may willingly accept this precautionary measure, just as chemoprophylaxis is accepted for ophthalmia neonatorum.-I am, etc., BYRON J. FRANCIS. Division of Epidemiology, Department of Health, State of Washington, U.S.A.