Recent Researches on Hookworm Infection in Indonesia

I alone am responsible for the opinions as they are expressed in this paper. The members of the Board were placed under great obligations by the kindness of planters, administrators, and doctors in Malaya, Java, and Sumatra, and I feel especially indebted to Dr. Chas. Lane Sansom, c.m.g., p.m.o., Fed. M. S.; Hon. W. Gilmore Ellis, p.c.m.o., Straits Settlements, and to Den Hogg. Ed. Gestr., Herr Dr. de Vogel, Chef Geneeskundigen Dienst, Netherlands Indies, for having so generously placed at my disposal facilities for pursuing the work. The problem of the Malaya Board was to ascertain to what extent hookworm infection was a menace to the health and working efficiency of the people of the Malay Peninsula. It was necessary, therefore, in a country where malaria of the most severe type co-existed with hookworm infection usually reaching an incidence among adults of 90 to 100 per cent., to attempt a quantitative estimation of the gravity of each infection.