Hookworm Disease and Hookworm

History, prevention, diagnosis, treatment and control of hookworm disease. Econom loss caused. Life cycle and comparison of Necator americanus and Ancylostoma duodenale. Photographs, drawings photomicrographs. (CDC-5-073; frames, color, synchronized disc, 13 minutes) Horse Bots and How to Fight Them U.S. Department of Agriculture, Life cycles of three kinds of hot community action to control bots protect horses from flies