OF VETERINARY MEDICINE. 177 



for the attack. It is thought that one attack renders the animal 

 immune for at least six months. 



The complications of influenza involve the lungs in the form 

 of broncho-pneumonia, which is always of tlie contagious va- 

 riety and the symptoms are those of a grave pneumonia; the 

 symptoms being rapid exhaustion, loss of appetite and exacer- 

 bation of fever — animal dies in 5-10 days if recovery does not 

 take place. 



Diagnosis. — The diagnosis of influenza is based upon the con- 

 tinued fever, with great depression and symptoms of rapidly de- 

 veloping icteric, dark colored mucous membranes and swelline 

 of the legs. The evidence of colic and congestion which is fol- 

 lowed by diarrhoea indicates a complication of enteritis. The 

 diagnosis of brain trouble is based upon the excessive violence 

 which interrupts the otherwise continual stupor of the animal. 



Prognosis. — Influenza is a serious disease principally on ac- 

 count of the complications. Uncomplicated influenza is only 

 fatal in 1-5 per cent of the cases. 



Treatment. — While the appetite remains the patient should 

 have a moderate quantity of hay, good oats and bran; or even 

 a little fresh clover, if obtainable, can be given in small quan- 

 tities. The sick horse should be placed in a well-ventilated stall. 

 To reduce the temperature give one dram of acetanilid every 

 two to four hours. The acetanilid may be used with alcohol 

 and strychnine. The patient must be blanketed. Never give a 

 laxative of any sort, for the enteric mucosa is in so sensitive a 

 state that half a pint of raw oil, or one ounce of sulphate of soda 

 might precipitate enteritis and cause death. If founder occurs, 

 it is difficult to treat. When recognized, hot or cold applica- 

 tions are useful. 



PURPURA HAEMORRHAGICA, 



Purpura hemorrhagica (French, anasarca) is frequently one 

 of the sequelae of influenza. It is an infectious disease though 

 not contagious. There is a difference of opinion as to the spe- 

 cific germ of this disease. Tizzoni, in 1889, found a bacillus 

 which he considered the specific germ. Babes corroborated it 



