By NewsDesk  @bactiman63

The first human West Nile virus (WNV) cases were reported in 2003 in Arizona when the state saw 13 cases. Since then, more than 1,900 WNV cases were reported cumulatively through 2020.


The most cases reported in any one year was 2004 when 391 cases were reported.

In a follow-up on the West Nile virus situation in Arizona this year, the Arizona Department of Health Services (ADHS) has reported 550 total WNV cases (215 confirmed and 335 probable), including 27 deaths as of October 15.

Maricopa County accounts for the bulk of the cases with 466 total cases.

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Approximately 350 of the states total cases were classified as neuroinvasive which includes meningitis and encephalitis.

Health officials in Arizona say this year’s wet monsoon is contributing to a record-high season for the West Nile virus.