What is the West Nile virus discovered in California? Symptoms, treatment, vaccines and all details explained

West Nile virus has been detected in California after two dead crows tested positive in San Diego County, prompting officials to urge mosquito-bite prevention measures. The virus primarily circulates among birds and spreads to humans through infected mosquito bites. Severe cases can affect the nervous system and may be fatal. Similar virus activity has also been reported in Texas and Michigan.