TENYARINHOZ

TENIARINHOZ - helminthiasis from the group of cestodiasis, characterized mainly by damage to the upper part of the human gastrointestinal tract. It occurs everywhere, mainly in areas of intensive animal husbandry. The causative agent is bovine, or unarmed, tapeworm (Taeniarhynchus saginatus). Has a body length of 4 -6 m; Consists of a head (scodex) without hooks and strobila, containing many (more than a thousand) segments. In the terminal mature segments, the uterus contains mature eggs. Eggs of round shape, have a thin transparent shell. Inside the egg is the embryo (oncosphere). The life span of bovine tapeworm in the human body can reach several tens of years.

Sexually mature bovine tapeworm parasitizes in the upper part of the small intestine of the human - the ultimate host. Intermediate hosts of the bull chain are cows, less often buffaloes, zebu, yaks, in which larvae - cysticerci (Finns) develop in the muscle tissue, as well as the reindeer, in which the cysticerci develop in the brain. A person with a shadowyarhynchosis isolates mature helminth segments containing the eggs in the environment (the segments begin to separate after 2.5 to 4 months after infection). Separation of segments occurs not only with feces, they can actively crawl out of the anus and move along the body of the patient. Each segment contains tens of thousands of eggs that are released when it is destroyed. Onkosfery retain viability in the environment to 2-8 weeks. Animals swallow eggs or segments of chainworm with contaminated food; While the oncospheres are introduced into the capillaries of the intestinal wall and the blood stream is introduced into various organs and tissues. In muscle tissue, they turn into cysticerci, which are small bubbles filled with a clear liquid. From their walls, the unarmed scolexes are turned inwards. Cysticercises develop up to the invasive stage for 4 months and remain viable up to 1 - 1.5 years. Some of the larval forms remain viable for several years.

A person becomes infected with shtayearhinosis when eating contaminated meat: raw, not sufficiently thermally processed, either slightly salted or dried. There is dizziness , weakness, nausea , vomiting , decreased appetite, unstable stool, abdominal pain of varying intensity, irritability, absent-mindedness, insomnia, in some cases body weight may decrease. Children sometimes experience a delay in general development. Perhaps an asymptomatic course of invasion.

The diagnosis is based on history data (periodic detection of joints in feces) and the results of a study of feces or perianal scrapings on oncospheres of bovine tapeworm.

Treatment is carried out in a hospital with fenasal or an ethereal extract from the rhizome of a male fern, pumpkin seeds.

Prevention includes early detection and de-worming of patients; Follow-up after treatment for 5 months, study of feces who had recovered on oncospheres of bovine tapeworm after the end of treatment and after 4-5 months, as well as a survey of epidemiological indications of people constantly in contact with cattle - shepherds, milkmaids, calves; Excluding the possibility of contamination of feed of cattle by feces of people; Sanitary improvement of populated areas and livestock farms; The study of carcasses of cattle for the presence of Finns at meat processing plants, meat and milk and food control stations (when selling on carcasses there must be a stamp of veterinary and sanitary control); Hygienic education of the population, especially of livestock keepers. Individual prevention - eating only well-cooked or roasted meat.