moderate risk
West Nile virus
WNV
When to seek urgent care: Emergency care for confusion or neck stiffness
Key facts
Family
Flaviviridae
Type
RNA virus
Severity
Variable
Incubation
2-14 days
Vaccine
None (human)
Est. cases tracked
4,571
Symptoms
FeverHeadacheBody achesRashEncephalitis (severe)
Transmission
Mosquito (Culex)
Prevention
Mosquito controlRepellent
Treatment
Supportive care
Related viruses (same family)
Dengue virusZika virusYellow fever virusJapanese encephalitis virusTick-borne encephalitis virusHepatitis C virus
This page is educational information, not medical advice or a diagnosis. For health concerns, consult a qualified healthcare professional. In an emergency, call your local emergency number.