An increase in mosquito-transmitted West Nile Virus (WNV) activity is occurring in many areas in Delaware as indicated in sentinel chickens used by the Delaware Department of Natural Resources and Environmental Control to monitor for certain mosquito-transmitted diseases.
West Nile Virus (WNV) has been detected in Delaware for the first time in 2021 in sentinel chickens, the Delaware Department of Natural Resources and Environmental Control announced today.
The Delaware Department of Natural Resources and Environmental Control will begin annual spraying of spring woodland pools to control aquatic immature mosquitoes Tuesday, March 23, weather permitting.
The Office of the State Veterinarian announced today Delaware’s fourth and fifth cases of West Nile Virus (WNV) found in horses in 2018. Three previous cases of WNV in horses were reported in 2018, two in August and one in September. Even though we are nearing the end of the mosquito season, the State Veterinarian urges horse owners to contact their veterinarians as soon as possible to have horses and other equines vaccinated against WNV and EEE. Neither disease has a specific drug treatment, and EEE infections in horses are fatal in 70 to 90 percent of cases, and WNV in 30 percent of cases.
The Office of the State Veterinarian announced today Delaware’s third case of West Nile Virus (WNV) found in horses in 2018. The infected equine is a 10-year-old pony gelding that was purchased from a Pennsylvania livestock auction and transported to a premises in New Castle County, DE on August 27. On August 30, the pony was observed to have a fever, was leaning and walking sideways. He progressed to show signs of wobbling and staggering, decreased tail tone, and facial nerve deficits. Samples were submitted to the National Veterinary Services Laboratory, which confirmed the diagnosis of WNV on September 7. The vaccination history for this pony is unknown.