Helminths (synonym worms) - parasitic worms, helminthic pathogens of diseases (helminthiasis) human, animal and plants. Helminths apply to the following four types: 1) Plathelminthes (flat worms), presents two classes of parasites - trematodes, or flukes, and of cestodes, or tapeworms. In Russia of trematodes person frequent opistorhisov, of cestodes - wide lentets, bovine, swine and dwarf tsepni, larvae Echinococcus and alveoli; 2) round worms, or nematodes (Nemathelminthes),- roundworm, whipworms, pinworms, ankilostomidoze, Trichinella and others; 3) skrebni, or koljuchegolovye worms (Acanthocephales); 4) annelids, or annelidy (Annelida). The representatives of the latter two types of people are parasites rare. The development cycle of helminths are divided into Bioelements developing in the presence of an intermediate (bullish tapeworm and others), and in some cases additional (wide lentets and others) owners, and soil-transmitted helminths (roundworm, and others), the larvae of which reach invasive stage in the external environment (usually in the soil).
Infection with helminthes people is mainly if swallowed Mature eggs or larvae helminth with food; larvae of some species of worms penetrate into human organism through the skin (Ancylostoma) or through the bite of insects (filari). For some worms (dwarf tapeworm and other) people is final and intermediate host, i.e., in the body of parasites adult and larval stages of development of worms. Helminths extremely prolific, many of them emit a day thousands and tens of thousands of eggs or larvae. Worms are spread around the globe, causing significant harm to human health and cause great economic damage, causing diseases of agricultural animals, fur-bearing animals, fish and plants. In Russia with helminths systematic struggle (see Deworming). Cm. also Helminthiasis.

What you need to know about parasitic diseases

Helminthiasis - diseases caused by parasitic worms - worms, or, as they are often called, worms.
In our country there are more than twenty kinds of more or less widespread helminth parasites in humans.
Different types of worms cause different in character, severity and duration of helminthic diseases. Spread of these diseases among the population is unevenly, depending on the biological characteristics of parasites.
For the propagation of worms appropriate conditions. Thus, a certain part of the life cycle and the development of Ascaris, vlasoglavy flows in the external environment, most often in the soil. Therefore, this kind of worms and called soil-transmitted helminths.
Another group of worms, such as pork and beef tapeworm, cat Fluke, develop on different biological owners and are therefore called Bioelements. Thus, a typical bioelement - bullish tapeworm in adult lives in the intestines of humans, and its larvae - muscle of cattle. The cattle being infected from a sick person, but through the affected Finns (larvae bull taenia) beef meat can become contaminated healthy people. In this regard, the prevention of parasitic diseases includes certain rules household hygiene and food hygiene.
Let's consider the most important types of worms, diseases caused by them, as well as measures for their prevention.