Equine Infectious Anemia — United States
Acute
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When horses are exposed to EIAv, they may develop severe, acute signs of disease and die within 2 to 3 weeks. This form of the disease is the most damaging and the most difficult to diagnose because the signs appear rapidly, and often only an elevated body temperature is noted. 1/5 of a teaspoon of blood from a horse with acute EIA contains enough virus to infect a million horses. Clinical signs of acute infectiousness are rather nonspecific; in mild cases, the initial fever may
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