Public Health Reports

activities Administration agencies agents American American Heart Association animals antibody areas bacteria brucellosis cardiovascular cardiovascular disease cells centers chemical chest X-ray chronic disease chronic illness cities clinical coliform contamination cords County death rate diagnosis diphtheria dose drugs effect epidemic epidemiological exposure factors field fluoride Hall County health department Heart Association heart disease hospital included increase individual infection influenza laboratory leukemia lung cancer malaria males ment mental methods milk mortality National nutrition organisms parathion patients penicillin percent personnel persons physicians poliomyelitis population present problems public health nursing Public Health Reports Public Health Service radiation radioactive rheumatic fever rural samples sanitary sanitation sea water serum social statistics suicide survey syphilis tion tissue titer tive treatment tuberculosis United vaccine virus viruses water supplies Willamette Valley workers York