types of diseases on horses
Equine Influenza (flu). Equine influenza (flu) is the most common viral respiratory disease in horses. It affects the upper and lower respiratory tract of horses and is highly infectious, with an incubation period of 1 to 3 days.After contracting the virus, horses can remain contagious for up to 10 days.quine influenza (flu) is the most common viral respiratory disease in horses. It affects the upper and lower respiratory tract of horses and is highly infectious, with an incubation period of 1 to 3 days. After contracting the virus, horses can remain contagious for up to 10 days.