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Borrelia miyamotoi Infection in Patients from Upper Midwestern United States, 2014-2015

Dean A Jobe, Steven D Lovrich, Darby G Oldenburg

    Emerging Infectious Diseases
    |July 20, 2016
    PubMed

    Insights

    Borrelia miyamotoi infections were confirmed in seven patients near La Crosse, Wisconsin. This tick-borne illness should be considered in patients with symptoms suggestive of tick-borne disease in the Midwestern United States.

    Area of Science:

    • Medical Entomology
    • Infectious Diseases
    • Public Health

    Background:

    • Ixodes scapularis ticks are vectors for numerous pathogens.
    • Borrelia miyamotoi is an emerging tick-borne bacterium.
    • Geographic expansion of tick vectors necessitates surveillance for novel pathogens.

    Purpose of the Study:

    • To report the confirmation of Borrelia miyamotoi infection in patients from Wisconsin.
    • To highlight the clinical and geographic relevance of B. miyamotoi in the Midwestern USA.

    Main Methods:

    • Clinical case identification.
    • Diagnostic confirmation of Borrelia miyamotoi infection.

    Main Results:

    • Seven patients with Borrelia miyamotoi infection were identified near La Crosse, Wisconsin.
    • The cases occurred in an area endemic for Ixodes scapularis ticks.

    Conclusions:

    • Borrelia miyamotoi is a confirmed cause of illness in the Midwestern United States.
    • Clinicians should consider B. miyamotoi in the differential diagnosis of tick-borne illnesses in this region.
    Keywords:
    Borrelia miyamotoibacteriahuman infectionmidwestern United Statesticksvectorborne infections

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