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    Re: [RC] WNV - Truman Prevatt

    According to report on CNN, the CDC has confirmed that it can be spread by organ transplants and are investigating cases where it was believed to have been spread by blood transfusions. So bird carriers and mosquito vector is not the only means in which it can be spread. I don't really think anyone knows yet.


    DESERTRYDR1@xxxxxxx wrote:

    I don't believe the data show that it travels from horse to horse. It is different from EIA which also does NOT travel directly from horse to horse, in that birds are infected.

    In EIA, the mosquito is the vector, and there is not an animal that can be bitten, travel long distances, then be bitten by another mosquito, thus spreading the disease quickly over long distances. Mosquitos don't normally travel long distances themselves, unless they are transported. That can happen, as in the mosquito larvae that were brought to WA from the orient in bamboo shoot packages, which had water in them. The larvae matured just in time to be released when the packages were opened. Don't know how many were actually released, do know they found larvae. Back to EIA, horses that test positive can be quarantined for life. They have to be in a screened enclosure, and be at least a certain distance from any other horses (don't remember the distance, but it is something in the range of a mile--please correct me if wrong.) That's based on the natural travel patterns of mosquitos.

    The big problem with WNV is that infected mosquitos bite birds, which can then fly long distances to be bitten by other, at that point non-infected mosquitos. Those mosquitos then become infected and the disease spreads over long distances without any particular mosquito ever having to leave home. jeri

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