California Horse Confirmed With EIA
On Jan. 24, the California Department of Food and Agriculture (CDFA) confirmed the state’s first case of equine infectious anemia (EIA) since 2017. The affected 24-year-old Paint mare in Madera County had been tested to travel out of state and was euthanized on Jan. 24. No horses on the mare’s premises were exposed; however, officials are performing an epidemiological investigation to determine if any other horses were exposed.
Equine infectious anemia is a viral disease that attacks horses’ immune systems. The virus is transmitted through the exchange of body fluids from an infected to an uninfected animal, often by blood-feeding insects such as horseflies. It can also be transmitted through the use of blood-contaminated instruments or needles.
A Coggins test screens horses’ blood for antibodies that are indicative of the presence of the EIA virus. Most U.S. states require horses to have proof of a negative Coggins test to travel across state
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