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    [RC] FW: West Nile Virus update - Maryanne Stroud Gabbani

     I subscribe to a number of veterinary lists and this came through that
    could be of interest to most of you. It's worth noting that there has only
    one "suspected" human fatality due to WNV. I get emails from people worrying
    about it, since my horses live on the west bank of the Nile, and the
    research figures are much less scary than some of the information I've seen
    on the net.
    Maryanne Stroud Gabbani
    Cairo, Egypt
    A ProMED-mail post
    Date: Wed 10 Jul 2002
    From: Lois Levitan <lcl3@xxxxxxxxxxx>
    Source: Environmental Risk Analysis Program, Cornell University [edited]
    [On 26 Aug 2001 the ProMED-mail post "PRO> Announcements 2001 (22), Archive
    Number 20010826.2025", contained the following announcement: "Cornell
    University's Environmental Risk Analysis Program maintains an up-to-date
    website with a wealth of resources on West Nile virus. The site provides
    news and links to an extensive list of resources and educational materials,
    including a comprehensive bibliography of scientific literature, resources
    for the public, a WNV glossary, archives to the WESTNILEVIRUS-L listserv,
    and more:  <http://www.cfe.cornell.edu/erap/wnv>
    The WESTNILEVIRUS-L listserv is an email discussion group for communication
    and discussion about WNV, particularly regarding policy, risk reduction and
    public education issues. It is moderated by Dr Lois Levitan at Cornell
    University's Center for the Environment. To subscribe (or unsubscribe),
    send an email request to <envrisk@xxxxxxxxxxx>. Archives are posted at:
    The following information has been received from Dr. Levitan, which
    provides a summary of the progress of the West Nile virus outbreak as of
    Wed 10 Jul 2002, and some useful links. - Mod.CP]
    Cornell's Environmental Risk Analysis Program (ERAP): West Nile Virus
    Update & Resources; 10 Jul 2002
    - -----------------------------------------------------------------------
    West Nile Virus has been detected in the US in at least 20 states and
    Washington DC; as well as in Ontario, Canada; and in mosquitoes in the
    Negev Desert in Israel. [West Nile virus is endemic in much of Europe and
    the Middle East. Testing is not normally undertaken on a routine basis -
    Mod.CP]. Its range has expanded in each of the 4 years since the initial
    North American outbreak in 1999, and is expected to continue to expand in
    2002. However, thus far in the season, Texas is the only state where West
    Nile virus has been detected for the first time in 2002 (a bird on 19 Jun
    2002, and then in horses, birds and mosquitoes). See the list below of
    states and locations in Canada where West Nile virus has been detected.
    In many places West Nile virus has been detected significantly earlier this
    season than previously. For example, West Nile virus-positive birds were
    not found in Massachusetts until mid-July 2001, 7 weeks later than in 2002;
    and were not found in Canada until August 2001, as compared with late May
    2002. In previous years West Nile virus-positive mosquitoes were not
    detected in Israel until mid-summer, whereas in 2002 they were detected in
    early May.
    A year ago at this time (10 Jul 2001), West Nile virus was found only in 7
    states (Connecticut, Delaware, Florida, Maryland, New Jersey, New York, and
    Rhode Island) and 2 years ago, had been detected only in New Jersey and New
    York at this point in the year. A year earlier (3 years ago) West Nile
    virus had not yet been detected in the US, although by the end of 1999 it
    had been detected in 4 states, primarily within 75 miles of New York City
    (NY, NJ, Connecticut, Maryland). By the close of 2001 West Nile virus was
    detected in 27 states and by the end of 2000 it was in 12 states.
    If confirmed, the first and thus far only human case in 2002 is a
    78-year-old man from SE Louisiana, near the Mississippi border. Reports of
    equine cases are inconsistent, but it appears that 7 cases are scattered
    throughout Florida, one case has been confirmed from central Kentucky, 6
    cases have been confirmed from southwest Louisiana, and one case from
    eastern Texas.
    In some areas where West Nile virus is showing up for the third and fourth
    year, there seems to be a growing complacency about taking precautionary
    and preventative measures. Although fortunately West Nile virus has not
    caused widespread human mortality, as was initially feared by some, it can
    cause unpleasant (flu-like) and sometimes long-lasting symptoms in people.
    It also presents a serious risk to unvaccinated horses. Protection measures
    are illustrated on a poster* newly issued by Cornell's Environmental Risk
    Analysis Program (ERAP).
    ERAP's West Nile virus web pages contain much additional user-friendly
    information about the disease, transmission, protection measures,
    educational materials, etc.: <http://www.cfe.cornell.edu/erap/wnv/ >
    *The full-color 11 x 17 "Mosquito Hygiene" poster (2nd edition) contains
    photos of Culex mosquitoes at each stage of development (egg, larva, pupa,
    and adult) and practical information about mosquito control at each life
    stage. Ordering & preview information at:
    West Nile virus has been detected in the following states:
    Florida (ann Feb 18)
    Louisiana (ann Mar 21)
    Pennsylvania (found Apr 29)
    Virginia (found Apr 8)
    New Jersey (found Apr 16)
    Washington DC (found May 1)
    Illinois (found May 2)
    New York (reported May 16)
    Connecticut (found May 16)
    Massachusetts (found May 21)
    Georgia (reported May 24)
    Michigan (found May 23)
    Ohio (reported May 30)
    Indiana (reported Jun 6)
    Tennessee (reported Jun 7)
    Rhode Island (found Jun 16-22)
    Maryland (ann Jun 17)
    Texas (ann Jun 19)
    Alabama (ann Jun 20)
    North Carolina (ann Jun 23)
    Kentucky (ann Jun 25).
    West Nile virus has been detected in the following regions of Ontario,
    Peel (May 19)
    Oxford (Jun 4)
    Chatham-Kent (Jun 12)
    Halton (Jun 15)
    Middlesex-London (Jun 17)
    - --
    Lois Levitan, PhD Program Leader
    Environmental Risk Analysis Program
    Center for the Environment
    213 Rice Hall, Cornell University
    Ithaca, New York USA 14853-5601
    All postings from VETMED are copyright (c) to their original author.
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