Volume 10, Number 6—June 2004
Antibody Prevalence of West Nile Virus in Birds, Illinois, 2002
|Factor||DF||Wald χ2||p value|
|r2 = 0.14|
aWNV, West Nile virus; DF, degrees of freedom.
bDependent variable, presence or absence of WNV antibody.
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