Vicious circles in disease / by Jamieson B. Hurry.

  • Jamieson Boyd Hurry
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Vicious circles in disease / by Jamieson B. Hurry. Source: Wellcome Collection.

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    and the consequent scratching lead to portions of the helminths or to their eggs being caught under the finger-nails, conveyed to the mouth, and swallowed. From the stomach the ova pass into the intestines and rapidly attain sexual maturity. In this way the irritation ensures, by auto-infection, successive generations of the parasite. Scabies. Scabies also creates a Circle through the itching and scratching excited by the acari. The parasite may lodge under the finger-nails, and thus be transferred from one part of the body to another. Such transference contributes greatly to the extension of the disorder. Acarophobia is at times complicated by troublesome correlations : “ There are some persons who have recovered from scabies, but who in consequence of the attack and of the treatment adopted are still suffering from a more or less extensive eczema. They will not believe themselves cured, and worry their doctor to order them more and more active treatment. This only aggravates the eruption and the itching, so that the poor sufferer cannot escape from the Vicious Circle in which he is caught.” 1 Pediculosis. Several Circles are associated with pediculi capitis. The crawling and sucking of the parasites cause itching, and the itching provokes scratching of the infected area. The finger-nails then produce excoriations and effusions, and thus supply further food material for the lice, accelerating