INFLUENZA AND THE INFECTIOUS DISEASES OF THE HORSE. 301 
INFLUENZA AND THE INFECTIOUS DISEASES OF THE HORSE, 
By Prof. Dieokerhoff. 
Continued from page 263. 
EPHEMERAL BRONCHO-PNEUMONIA OF THE HORSE. 
In Brustseuche, it is often observed that the fever suddenly 
stops and that the local symptoms remain without increase. 
This peculiar process, called abortive, is also observed in the 
croupal-pneumonia of man. The precise conditions of this mode 
of termination are little known; some attributing it to the dimin¬ 
ished intensity of the action of the infectious germ, while others 
pretend that it is due to the temperament or to the predisposi¬ 
tion of the subjects. Old authors say that, in the abortive form 
of the croupal-pneumonia of man, the reduction of the tempera¬ 
ture is not observed in odd days; modern writers, on the con¬ 
trary, have observed that the period of decline may show itself 
at any time. “ As to the period of incubation, it is as variable 
as the duration of the disease itself, and there are pneumonic 
attacks which last only from twenty-four to thirty-six hours,” 
(Furgensen, Seitz.) 
In brustseuche the inflammatory process in the lung may also 
cease every day, and the temperature subside in the space of 
twenty-four to thirty-six hours, from 40.3° to normal heat. 
In the course of some epizootics, horses have been treated 
which were suffering with unilateral pneumonia, characterized by 
the general dullness, acceleration of respiration and circulation, 
elevation of temperature, etc. It often occurred that after two 
days the fever subsided, and with it all the accessory symptoms 
disappeared after a few days. 
In 1884 Professor Dieckerhoff had an opportunity of studying 
an infectious pneumonia, closely resembling brusteuche, in which 
the fever never lasted more than a single day. He called it 
“ pneumonia ephemera febrilis equorum,” and reported the fol¬ 
lowing cases in four horses, which in 1881 had suffered with 
pferdestaupe: 
