“…2, opposite). This state of affairs has been noted in small outbreaks in post-war Budapest (Fejer, 1948), in Madras, India (Rajam and Rangiah, 1952), in a coloured community in South Africa (Taylor, 1954), and in slum conditions in Chicago (Eisenberg, Plotke, and Baker, 1949). Incidentally none of the children in the Chicago series, who came from homes with elementary hygienic conditions, shewed a primary lesion.…”