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West Nile Virus cases are rising in United States.
Active cases
2.1K
RisingConfirmed cases
2.4K
Deaths
140
Recovered
560
Outlook
Projected West Nile Virus case trend, based on the current dataset.
West Nile Virus cases are rising in United States. Chart shows the projected case trajectory over time.
Illustrative estimateGlobal comparison
Top countries by active West Nile Virus cases, excluding United States.
Learn more
West Nile virus is a mosquito-borne infection that is usually mild but can occasionally cause serious brain inflammation, particularly in older adults.
Read the full guide