What does the surveillance report say about West Nile virus cases?
Surveillance reports show West Nile virus is the top cause of arboviral disease in the US, with most cases happening between April and September.
Read the full answer →How did West Nile virus disease patterns change from 2009 to 2018?
From 2009 to 2018, West Nile virus cases in the US shifted toward the eastern parts of states like South Dakota and started appearing earlier in the summer season.
Read the full answer →Are there West Nile virus cases reported in Maricopa County, Arizona in 2021?
Yes, an outbreak of West Nile virus was reported in Maricopa County, Arizona in 2021, which was the largest county-level outbreak in the U.S. that year.
Read the full answer →How did West Nile virus rates change in 2021 compared to the previous decade?
West Nile virus rates in the U.S. increased in 2021 compared to the median rate seen between 2010 and 2020.
Read the full answer →What was the West Nile virus outbreak in Arizona during 2021?
In 2021, Maricopa County, Arizona experienced its largest county-level West Nile virus outbreak in US history, with 1,487 cases and 101 deaths reported.
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