West Nile virus is a viral infection spread mainly through the bite of infected mosquitoes, particularly those of the Culex species. Most people infected with West Nile virus experience no symptoms or only mild flu-like symptoms. However, in some cases, particularly in older adults or individuals with weakened immune systems, it can cause serious illness such as West Nile fever, which may have symptoms like high fever, headache, body aches, joint pain, vomiting, diarrhea, and rash. In rare instances, West Nile virus can lead to serious neurological conditions. There is no specific treatment for West Nile virus, so management focuses on relieving symptoms and supportive care. Prevention measures include avoiding mosquito bites by using insect repellents and wearing protective clothing.

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