88 SYMPTOMS 



ing to the site of its manifestations as anthrax with visible 

 localization, and anthrax without visible localization. 



A7ithrax without visible localization. This form is gener- 

 ally due to ordinary infection presumably by spores. It in- 

 cludes the peracute, acute, and subacute. 



(i) The peracute or apoplectic anthrax gives rise to 

 symptoms of cerebral apoplexj'. The animal becomes sud- 

 denly ill, staggers about for a brief period and falls. There is 

 often a bloody discharge from the mouth, nostrils and anus. 

 Death usually ensues in from a few minutes to an hour. 

 Usually there are convulsions. Sheep and cattle suffer most 

 frequently from this form of the disease. They are often 

 found dead. This is especially true in the beginning of an 

 epizootic. 



(2) In the acute form the disease runs a somewhat 

 slower course, lasting usually not to exceed twenty- four hours. 

 The temperature rises rapidly to from 105 to 108° F. With 

 this there are signs either of congestion of the brain or of the 

 lungs. If the brain is affected the animal becomes restless, 

 excited, stamps the ground, rears in the air, bellows, runs to 

 and fro and finally goes into convulsions followed by stupor 

 and death. If the lungs are congested there is difficulty 

 in breathing, more or less wheezing, panting, groaning, palpi- 

 tation of the heart, small and frequent pulse, cyanosis of the 

 mucosa of the head, bloody discharges, haematuria, stagger- 

 ing and finally convulsions and death from suffocation. 

 Occasionally there is a partial remission of the symptom, fol- 

 lowed by relapse. It has been observed that occasionally 

 there are premonitory symptoms preceding the acute attack 

 consisting of slight digestive disturbances and diminished 

 vivacit3^ 



(3) The subacute form is known as anthrax fever or in- 

 termittent anthrax. The symptoms are the same as in the 

 other forms, excepting they are more sharply defined and the 

 course is longer. The disease lasts from one to seven or eight 

 days, the average being about forty-eight hours. The high 

 temperature, the congestion of the lungs or brain complicated 

 with intestinal disturbances, especially colic, are usually well 



