Carson City Health and Human Services is reporting the first human case of West Nile virus in Lyon County for 2018. The individual confirmed to have West Nile Virus was diagnosed with the less severe form of the illness and contracted the virus through mosquito bites out of state. This is the first human West Nile virus case to have been reported in the tri-county area of Carson, Douglas and Lyon this year. The virus was detected through the blood donation pre-screening process. Avoiding mosquito bites is the best defense against West Nile Virus.