HELMINTHS (grech, helmins, helminth[os] a worm, a worm) — helminths, causative agents of diseases of the person, animals and plants. The diseases caused by G. are called helminthoses (see). Represent brightly outlined ecological group of the animals combined by one sign — a parasitic way of life. Worms of three types belong to G.: flat worms (see), roundworms (see) and skrebn (see).
Are divided by a development cycle of G. on biohelminths (see), the intermediate owners developing with participation, and geohelminths (see), the owners developing without change. Localization of helminths in a human body and animals is very different. In addition to various departments of a digestive tract, G. parasitize in a liver, kidneys, lungs, eyes, a brain, heart, muscles, hypodermic cellulose, skin, in blood and other bodies and fabrics. At the person the St. 250 types of helminths from which apprx. 65 meet in the territory of the USSR are registered.
See also Helminthoses .
Bibliography: Scriabin K. I., Sh at l R. S. c and in about z d e in E. V. K to specification of the concept «helminths» and their situation in system of an animal kingdom, Parasitology, t. 5, No. 2, page 179, 1971; Shikhobalova N. P. Helminthoses, the general to the person and animals, M., 1955; Schultz R. S. and Gvozdev E. V. Bases of the general helminthology, t. 1, page 6, M., 1970.
Yu. K. Bogoyavlensky.