Equine Influenza. Adynamic Catarrhal Fever of Solipeds. 133 



Fueumonia : 



Croupous Fibrinous. 



From climatic vicissi- 

 tude, exposure, etc. 

 Attacks exposed ani- 

 mals only, and all at 

 once 



Prevails in inclement 

 seasons, spring, au- 

 tumn, (Winter). 



Pneumonia : 



Contagious, of Equine 

 Animals. 



Slow succession of cases 

 in the same stable, 

 irrespective of climate 

 or exposure 



Any season : worse in in- 

 clement season 



Rigor may be late : after 

 exudation has c o m- 

 menced 



Sets in slowly or with 

 acute congestion ; ap- 

 petite and pulse vary 

 with inflammation 



Nasal discharge, watery 

 or rusty, later m.uco- 

 purulent 



Eye pink, dark red 



Infection from close 

 proximity, contact, 

 stall, manger, rack, 

 bucket, trough, etc. : 

 Spread slow 



Carried in manure, on 

 harness, wagons, 

 clothes, etc. 



Incubation 3-10 days 



Rigor early and well 

 marked, before exuda- 

 tion 



Sets in slowly, cough, 

 dulness, impaired ap- 

 etite, pulse rapid, pros- 

 tration slight 



Nasal discharge, yellow. 



Eye yellow, rarely swol- 

 len or watery 



Temperature rises with Temperature rises early 



inflammation and extremely, before 



exudation, io4°-io7°_ 

 Swelling of limbs rare__ Limbs swell rarely 



Rheumatoid arthritis 

 may follow 



Crepitation more con- 

 stant around the exu- 

 dation 



Exudation (Hepatisa- 

 tion) in lung, lower, 

 posterior, anterior, or 

 central, usually undi- 

 vided area 



If pleurisy effusion may 

 be copious 



Crepitation less constant 

 around the exudation. 



Exudate affects lower or 

 anterior border, of 

 lung ; often in small 

 isolated areas or 

 around bronchia ; less 

 blood engorgement 

 than in fibrinous pneu- 

 monia 



Pleural effusion i n f r e - 

 quent, or limited, 

 though pleurisy is 

 common 



Pneum.onia : 



of Equine Influenza. 



Rapid succession of 

 cases in the same 

 stable or locality, irre- 

 spective of climate or 

 exposure 



Any season : worse in 

 inclement season 



Infection spreads widely 

 and rapidly through 

 the air. Spread rapid 

 and often general 



Carried in manure, on 

 harness, wagons, 



clothes, etc. 



Incubation, 1-2 days. 



Rigor not always well 

 marked 



Profound nervous pros- 

 tration like opium 

 poisoning, appearing 

 early and suddenly 



Nasal discharge, watery, 

 may become yellow 



Eyelids bloodshot (pink 

 eye), violet, madder 

 hue, swollen, watery, 

 closed 



Temperature rises early 

 and extremely, in 

 some hours io4°-io7° 



Limbs often swell great- 

 ly 



Rheumatoid arthritis 

 may set in ; often in 

 advanced stage 



Crepitation may escape 

 recognition 



Exudate less granular 

 than in pneumonia ; 

 forms in or gravitates 

 to lower part of lung. 

 Congestion passive 



Pleural effusion frequent 

 and abundant 



