The diagnosis was confirmed in test results released Oct. 16 by the state Department of Health.
Oswego County Public Health Director Jiancheng Huang said the horse had not been vaccinated for EEE. It is the second horse to die of EEE this year in Oswego County. A horse died in the town of West Monroe in August.
Huang said that EEE and West Nile viruses will remain active in the environment until the first heavy frost occurs.
“Until we have a killing frost, people in all areas of Oswego County need to fully protect themselves from mosquito bites when they participate in outdoor activities,” said Huang.
He advises people to continue to use insect repellents; limit outdoor activities around dawn and dusk, when mosquitoes are most active; wear long pants, long-sleeved shirts, shoes and socks when outdoors; and eliminate standing water around the home. Repellents containing DEET are the most effective, and should be used with caution and according to label instructions. Products containing picaridin and oil of lemon eucalyptus are also effective.
For more information about protecting your family against mosquitoes, call the Oswego County Health Department at 315-349-3547 or visit the New York State Department of Health website at http://www.health.ny.gov/publications/2731/.