Colorado
West Nile virus transmission occurs when infected mosquitoes feed on animals, as well as humans, after having fed on infected birds. | Photo: Photos.com
The Colorado state veterinarian’s office, a division of the Colorado Department of Agriculture (CDA), announced on Oct. 3 that 10 equine West Nile virus (WNV) cases have been confirmed in 2019.

The affected horses resided in eight counties:

  • Adams (1);
  • Garfield (1);
  • Larimer (1);
  • Mesa (1);
  • Montrose (1);
  • Pueblo (1);
  • Rio Blanco (1); and
  • Weld (3).

Veterinarians involved with the cases report that more affected horses than usual seem to be acutely neurologic with severe symptoms. Due to the severity of their clinical signs, four of the horses have been euthanized.

About West Nile Virus

West Nile virus transmission occurs when infected mosquitoes feed on animals, as well as humans, after having fed on infected birds

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