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Volume 15, Number 12—December 2009


Wild Felids as Hosts for Human Plague, Western United States

Sarah N. BevinsComments to Author , Jeff A. Tracey, Sam P. Franklin, Virginia L. Schmit, Martha L. MacMillan, Kenneth L. Gage, Martin E. Schriefer, Kenneth A. Logan, Linda L. Sweanor, Mat W. Alldredge, Caroline Krumm, Walter M. Boyce, Winston Vickers, Seth P.D. Riley, Lisa M. Lyren, Erin E. Boydston, Robert N. Fisher, Melody E. Roelke, Mo Salman, Kevin R. Crooks, and Sue VandeWoude
Author affiliations: Colorado State University, Fort Collins, Colorado, USA (S.N. Bevins, J.A. Tracey, S.P. Franklin, V.L. Schmit, M.L. MacMillan, L.L. Sweanor, C. Krumm, M. Salman, K.R. Crooks, S. VandeWoude); Centers for Disease Control and Prevention, Fort Collins (K.L. Gage, M.E. Schriefer); Colorado Division of Wildlife, Montrose, Colorado, USA (K.A. Logan, M.W. Alldredge); University of California, Davis, California, USA (W.M. Boyce, W. Vickers); National Park Service, Thousand Oaks, California, USA (S.P.D. Riley); United States Geological Survey, Irvine, California, USA (L.M. Lyren, E.E. Boydston, R. Fisher); National Cancer Institute, Bethesda, Maryland, USA (M.E. Roelke)

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Table 2

Potential fixed-effect predictors of plague exposure in pumas and bobcats, western United States, 2002–2008*

Fixed effect Num df Den df F value p value
Age 1 287 5.13 0.024
Location 4 287 8.36 <0.0001
Season 3 287 4.1 0.0179
Sex 1 287 2.47 0.117
Species 1 287 1.02 0.314

*Num df, numerator degrees of freedom; den df, denominator degrees of freedom. Boldface indicates significance (p<0.05).

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