5 
influenza may attack the lungs themselves, causing a dull soft cough,. and 
great prostration and acceleration of the pulse; and sometimes, though 
rarely, the disease may terminate in mortification of the lung tissue itself. 
In some epidemics, “ pleurisy,’ or inflammation of the lining membrane of 
the chest and lungs, complicates influenza, and sometimes rages under the 
name of “epidemic pleurisy,” or pleuritic influenza.” Of the special forms of 
influenza, “pink eye” is perhaps the best known, for it has been very 
prevalent of late years. By some it is regarded as a distinct disease, but it 
is in the writers’ opinion most probably only a modified variety of simple. 
influenza. It is usually characterised by the pink colour of the white of the eyes, 
and by great severity ‘of constitutional symptoms and great prostration. 
One or both lungs often become diseased, and violent diarrhcea and colicky 
pain, indicating disease of the organs of the belly, may supervene ; and in 
some cases there is total loss of power in the hind quarters. This form of 
influenza is especially dangerous in weakly animals. 
\ The complicated forms of influenza now recognised are three. The first 
or the “thoracic” form, attacks the organs of the chest mainly, z.¢., the lungs, 
pleura, and heart. The second, or the “abdominal” form, or so-called 
\ “bilious fever’) or so-called {‘typhoid fever,’ attacks the organs of the belly; 
and is characterised by great prostration, and by the yellow colour of the 
membrane of the nose and other visible mucous surfaces, and of the white 
of the eye. The third and last form is termed the “rheumatic variety.” 
This form usually appears towards the close of the ordinary symptoms of the 
disease, and is recognised by the pain in the joints, which crackle when moved, 
and after a time swell. The heart is often attacked in this variety. One 
point more we should mention as very common in influenza, and this is the 
great liability for the glands of the throat to become inflamed and swollen, 
and even to form abscesses. 
Influenza is a very debilitating disease in horses, as it is in man, and it is 
to be borne in mind ‘that one attack does not secure immunity from a second 
or even a third.’ 
We will now turn our attention to the consideration of the general and 
special management of this contagious malady. In every outbreak of influenza 
it should be our first object to inquire carefully into the hygienic arrangements 
-of our stables; to see that the drains and ventilation are not at fault; to 
ascertain—and this is very important—whether or not the water supply is 
contaminated with sewage matter; and, finally, to see that the oats and 
other fodder are in good condition. 
If these matters are carefully. attended to, influenza will be much 
less likely to break out in a severe and lingering form than among animals 
subjected. to defective sanitary arrangements. : 
In speaking of the treatment of influenza, we should always remember that 
grave symptoms may in many instances be prevented by early and judicious 
care and treatment. Indeed, it is certain that many a neglected case proves 
fatal, which with proper care and attention would have proved but a simple, 
mild attack. 
