Mosquito season during the months of summer, continuing through fall season is the dominant period during which a West Nile infection can spread. West Nile virus is a mosquito borne disease and can lead to symptoms like fever, nausea, headaches among others. It is estimated that 1 in 5 people in the country develop West Nile virus symptoms while only 1 in about 100 cases develop severe symptoms that affect the central nervous system. This commonly spread infection is more dominant in the Northern regions of the country, while cases have been reported in continental parts as well. There are many different types of the infection, which in turn results in different types West Nile virus symptoms: It usually takes about two to fifteen days for the infection to start showing noticeable symptoms like fever, meningitis, encephalitis among others. West Nile Fever: Visible indicators are similar to symptoms exhibited by people who are suffering from the flu, West Nile fever is a febrile syndrome which lasts for a couple of days after the first symptoms show up. These include a High fever followed by a headache and excessive chills coupled with nausea, loss of appetite and diarrhea. Fatigue, drowsiness, pain in joints and even swollen lymph nodes are the more noticeable signs of West Nile virus fever.