Text book of veterinary medicine, Volume 4 (of 5)Law, James
Science
Text book of veterinary medicine, Volume 4 (of 5)
Law, James
Veterinary medicine
In Northern Europe and Asia, Southern Europe and Guadaloupe an analogous
affection is described by Rivolta, Claudio-Fermi, Aruch, Tokishige and
Nocard and Leclainche. Hitt attributes this to saccharomyces. The
infection attacks horses and cattle, entering by sores and abrasions of
the skin of the limbs, or under the harness (back, breast, rump, head).
Confined at first to the point of infection it becomes multiple, being
conveyed from place to place, through the soil, floor, stall, harness,
blankets, brushes, combs, straw, etc., and may extend on the mucosæ. The
wounds fester, forming pus and crusts over a more or less considerable
swelling. In a variable time, (one to twenty weeks) the surrounding
lymphatics become swollen and tender (corded), and nodular swellings
appear on their course which fluctuate, burst and discharge a whitish or
yellowish pus, sometimes oily or slimy. The disease extends along the
lymphatics, invading the lymph glands and even the internal organs.
Tokishige describes cases in which it extended along the respiratory
mucosa, causing constriction of the nasal passages and larger bronchi,
with dyspnœa, and finally, invading the lung. In other cases it spread
from the prepuce, or scrotum, upward along the tunica vaginalis,
spermatic cord and testicle. Caparini and Ferner describe it in the
orbit, affecting the lids, nictitans, conjunctiva and adjacent parts,
with nodules and abscesses. Mazzanti describes the case of a filly which
died with pea-like nodules on the colon, and ulceration, with dirty,
black, purulent centres, and indurated borders. Tokishige describes the
affected cattle as showing a vast number of subcutaneous, hard, painless
nodules, varying in size from a hazel nut to a walnut and covered by
light colored skin. The nodules were isolated and not connected by
swollen, beaded lymph vessels. They encrease and suppurate much more
slowly than in the horse. In three cows microscopically examined he
found apparently the same branching fungus (saccharomyces), as in the
horse cases. The mortality is about 10 per cent.
In the _farcy of the ox_ of Guadaloupe there form subcutaneous nodular
abscesses, with cordiform swelling of the lymph plexus and trunks, often
proving fatal in a year through extension to the lungs. The abscess
breaks, discharging a whitish, creamy or caseous, or grumous contents,
containing a bacillus (Nocard). The abscesses usually appear under the
sternum or belly and later extend to the thighs and legs. In all such
cases the mallein test is inoperative.
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