1 Protection is critical for all horses because it spreads so rapidly. In fact, one horse can infect an entire stable in a matter of days. This is one of the reasons why Flu Avert I.N. vaccine is considered such an important breakthrough. The protection demonstrated by this intranasal vaccine is exceptional. While a number of mammals, including people, suffer from influenza, the strains that affect horses pose no known risk to humans.
Equine influenza is the most widespread viral upper respiratory illness in horses.
Equine influenza can cause costly delays in training, sideline horses during important events, and make them susceptible to more serious secondary infections such as bacterial pneumonia. Clinical Signs Outbreaks of equine influenza spread quickly. When unprotected horses are exposed to the equine influenza virus, they generally will develop clinical signs of disease within 1 to 5 days. The clinical signs of equine influenza are similar to other respiratory diseases, such as equine rhinopneumonitis and viral arteritis. The best way to confirm equine influenza is with laboratory testing.