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Mississippi involved in Contagious Equine Metritis Outbreak

On December 15, 2008, the State of Kentucky confirmed a case of contagious equine metritis (CEM) in a quarter horse stallion on a premises in central Kentucky.  A total of seven stallions have been confirmed as positive for CEM by USDA’s National Veterinary Services Laboratories.  Four (4) of the infected stallions are located in Kentucky and three are in Indiana.  The Indiana stallions spent time on the index premises in Kentucky during the 2008 breeding season.   An exposed horse is one that was on the index premises in Kentucky and/or one that was bred to a CEM-positive horse, either naturally or via artificial insemination.

Outside of Kentucky, the location of 92 exposed horses plus 3 positive stallions has now been confirmed.  The total of 95 horses includes 12 stallions and 83 mares located in 28 different States.  All CEM-positive horses, and all exposed horses that have been located, are currently under quarantine or hold order.  Testing and/or treatment protocols are being put into action for all located horses.

At least 250 additional horses are actively being traced, with owners of those horses located in at least 27 States.  Only 12 States have not been involved in the CEM investigation process to date.

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