A practical guide to meat inspection / by Thomas Walley.

  • Walley, Thomas, 1842-1894.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: A practical guide to meat inspection / by Thomas Walley. Source: Wellcome Collection.

    134/272 (page 112)
    majority of cases absence of catarrhal symptoms, but marked evidence of jaundice with extreme fever, and a tendency to derangement of the bowels and to serious lung complications, e.g., pneumonia and pleurisy ; in the third form, the prominent lesion is rapid effusion into the connective tissue of the limbs, into the eyelids, and frequently into the cornea—these parts becoming infiltrated with serum to an enormous degree—and, under adverse influences, metastasis of the lesions to the bowels, the lungs, and the throat. The systemic effects produced by influenza are, on the whole, similar to those of other excessively febrile conditions—with universal jaundice in the case of the bilious form, and infiltration (more or less general) of the connective tissue of the body, and effusion into internal cavities. The small vessels (capillaries) of the tissues, too, are markedly engorged with blood. Two subsidiary or secondary forms of influenza are occasionally met with, viz., Muco Enteritis {Typhoid Influenza), and Cerebro- spinal Meningitis. The former gives rise to enteric lesions and to alterations in the tissues similar to those produced by the muco- enteritis produced by other causes, coupled with the changes produced by fever; in the latter, the tissue changes are not so marked. The flesh of an animal which has been the subject of any form of influenza of a sufficiently severe type to necessitate slaughter, presents such marked departures from normal condi- tions as to at once attract notice, and in themselves these afford ample warrant for the condemnation of the flesh. Malignant Catarrh and Malignant Catarrhal Fever.—The first of these terms is applied to that condition in which an ordinary attack of catarrh (owing to the action of pyogenic organisms) assumes malignant characters, and tends to destroy life. It is seen most largely in the sheep and the pig, and occasionally in cattle, and its virulence is traceable to the exist- ence of bad sanitary conditions, and to exposure to cold and wet