SQUIRRELS in CALIF - research shows it's a TICK HOST/LYME....

Discussion in 'Lyme Disease Archives' started by victoria, Oct 21, 2008.

  1. victoria

    victoria New Member

    this is no surprise... but certainly shows it's there, here, and everywhere basically speaking, in one host or another!

    Mon Oct 20, 2008 9:07 pm (PDT)
    Identifying the reservoir hosts of the Lyme disease spirochete
    Borrelia burgdorferi in California: the role of the western gray
    squirrel (Sciurus griseus).

    Salkeld DJ, Leonhard S, Girard YA, Hahn N, Mun J, Padgett KA, Lane RS.
    The American Journal of Tropical Medicine and Hygeine,
    2008 Oct;79(4):535-40.

    http://www.ajtmh.org/cgi/content/abstract/79/4/535

    Dept of Environmental Science, Policy and Management, and Office
    of Laboratory Animal Care, University of California, Berkeley,
    California 94720, USA.

    *Abstract

    We investigated the role of the western gray squirrel (Sciurus
    griseus) as a reservoir host of the Lyme disease spirochete Borrelia
    burgdorferi.

    A survey of 222 western gray squirrels in California showed an overall
    prevalence of B. burgdorferi infection of 30%, although at a county
    level, prevalence of infection ranged from 0% to 50% by polymerase
    chain reaction.

    Laboratory trials with wild-caught western gray squirrels indicated
    that squirrels were competent reservoir hosts of the Lyme disease
    bacterium and infected up to 86% of feeding Ixodes pacificus larvae.

    Infections were LONG-LASTING (my caps) (up to 14 months(!!!), which demonstrated
    that western gray squirrels can maintain B. burgdorferi trans-seasonally.

    Non-native eastern gray squirrels (Sciurus carolinensis) and fox
    squirrels (Sciurus niger) were infrequently infected with B. burgdorferi.

    (c) 2008 by The American Society of Tropical Medicine and Hygiene

    http://www.ajtmh.org/cgi/content/abstract/79/4/535