Osmosis video - West Nile virus

West Nile virus is an arbovirus transmitted by mosquitoes, with birds acting as a reservoir. The virus causes West Nile fever, which can progress to encephalitis or meningitis. Symptoms include fever, headache, vomiting, and rash. Diagnosis is made by detecting elevated IgM levels in the serum or CSF using a specific immunoassay test. Treatment involves supportive care, and prevention is the best therapy, including the use of mosquito repellent and wearing protective clothing.