Human and animal infection rates with the Oriental schistosome have steadily declined in China over the last half-century, but the Three Gorges Dam may reverse this decline by creating new, or enlarging existing, ideal environments for the worm and its aquatic snail intermediate host.
Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Reseach, and the University of Queensland, PO Royal Brisbane Hospital, QLD 4029, Australia.
