A laboratory-confirmed case of West Nile fever was recorded Tuesday in Armenia.

West Nile fever is a transmissible viral disease transmitted mainly by mosquitoes, the Ministry of Health of Armenia informed Armenian News-NEWS.am.

The infection is not transmitted from person to person. It has a pronounced seasonality, from June to October, due to favorable conditions for the reproduction and spread of mosquitoes.

About 80 percent of infected people do not develop any symptoms.

Clinical symptoms of West Nile fever include headache, myalgia, rash, arthralgia, dizziness, and in severe cases—meningitis, encephalitis, as well as signs of damage to the central or peripheral nervous system.

Specialists from the National Center for Disease Control and Prevention of Armenia continue to conduct entomological examinations among carriers.