a twelve-month study of west nile virus antibodies in a resident and a migrant species of kestrels in israel.two species of kestrel, the common and lesser, were caught each month at three geographically defined locations in israel over a 12-month period, and a total of 306 blood samples were examined for west nile virus neutralizing antibodies. the prevalences and mean antibody titers were analyzed statistically by the multiple linear regression model and were shown to be significantly affected by two of the independent variables, location and age of the bird. the season had no overall effect on preval ...200415018769
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