Trichinosis

trichinosis

[‚trik·ə′nō·səs]

(medicine)

Infection by the nematode Trichinella spiralis following ingestion of encysted larvae in raw or partially cooked pork; characterized by eosinophilia, nausea, fever, diarrhea, stiffness and painful swelling of muscles, and facial edema.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Trichinosis

 

a nematode helminthic disease of human beings and animals caused by infestation with trichinae. Trichinosis is characterized by natural endemism. In human beings, adult trichinae live in the host’s intestine, and the larvae live in striated muscle. The principal symptoms are caused by allergy to substances produced by the metabolism and decomposition of trichinae. Infection follows the consumption of the flesh of infested animals. Fever with a temperature of 39°C and higher, edema of the eyelids and face, muscular pain, and frequently rash, headache, and intestinal disorders occur after ten to 25 days. Improvement is observed within a week or two, but the disease is sometimes severe and even fatal.

Thiabendazole and antiallergenics are used in the treatment of trichinosis. Preventive measures include the maintenance of hygienic living conditions for livestock and the inspection of animal carcasses to be consumed by human beings.

REFERENCE

Leikina, E. S. Vazhneishie gel’mintozy cheloveka, 3rd ed. Moscow, 1967.

N. N. PLOTNIKOV

Trichinosis of animals has been observed in more than 100 species of domestic and wild mammals, including herbivores, carnivores, and rodents. It is most common in swine. Infection follows the consumption of meat waste products, carcasses, and occasionally the feces of animals infested with trichina larvae. The larvae swallowed with food are liberated from their cysts in the animal’s intestine and are transformed into the mature parasite. Its subsequent development in the animal is the same as in human beings. Diseased animals suffer from diarrhea and other digestive disorders, muscular pain, emaciation, and itch. Severe infection leads to edema, thrombosis, pneumonia, and paralysis.
No cure for trichinosis has been developed. Preventive measures include the decontamination of all meat wastes fed to the animals and the supervision of swine grazing in areas inhabited by man or in forests. It is necessary to inspect all swine carcasses and to dispose of the carcasses of diseased animals in an appropriate manner.

REFERENCE

Bessonov, A. S. “Trikhinellez.” In Gel’mintozy svinei. Moscow, 1963.

A. S. BESSONOV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.