West Nile virus activity--United States, January 1-September 12, 2006

    Insights

    West Nile virus (WNV) surveillance in 2006 showed 1,634 human cases across 36 states. The data highlights WNV illness trends, median patient age, and identifies 52 fatal outcomes, emphasizing the virus

    Area of Science:

    • Public Health
    • Epidemiology
    • Virology

    Background:

    • West Nile virus (WNV) is a significant public health concern.
    • Surveillance data is crucial for understanding WNV transmission dynamics.

    Purpose of the Study:

    • To summarize West Nile virus (WNV) surveillance data reported to the CDC.
    • To provide an overview of human WNV cases in the United States as of September 2006.

    Main Methods:

    • Data collected through ArboNET surveillance system.
    • Analysis of reported human WNV illness cases from 36 states and the District of Columbia.

    Main Results:

    • 1,634 human WNV cases reported by September 12, 2006.
    • Median patient age was 51 years; 57% of cases occurred in males.
    • Illness onset dates ranged from January to September, with 52 reported fatalities.

    Conclusions:

    • The surveillance data provides a snapshot of WNV activity in the US during the 2006 season.
    • Findings underscore the geographic distribution and demographic impact of WNV.
    • The number of fatalities indicates the potential severity of WNV infections.

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