An Epidemiological Significance of Inquiry into Dysentery Carriers in School Pupils

From 1952 to 1953, two years running, the dysentery survey was carried out in a somewhat large scale at Omura Region in Nagasaki Prefecture. It was stated that of 20.340 pupils 0.1-1.8 per cent, 0.5 per cent on the average, were healthy carriers of dysen