Emerging Infectious Disease ISSN: 1080-6059

Reservoir Competence of Vertebrate Hosts for Anaplasma phagocytophilum

Felicia Keesing

, Michelle H. Hersh, Michael Tibbetts, Diana J. McHenry, Shannon Duerr, Jesse Brunner, Mary Killilea, Kathleen LoGiudice, Kenneth A. Schmidt, and Richard S. Ostfeld

Author affiliations: Bard College, Annandale-on-Hudson, New York, USA (F. Keesing, M.H. Hersh, M. Tibbetts, D.J. McHenry); Cary Institute of Ecosystem Studies, Millbrook, NY, USA (F. Keesing, M.H. Hersh, S. Duerr, R.S. Ostfeld); Washington State University, Pullman, Washington, USA (J. Brunner); New York University, New York, New York, USA (M. Killilea); Union College, Schenectedy, NY, USA (K. LoGiudice); Texas Tech University, Lubbock, TX, USA (K.A. Schmidt)

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Figure 2

Mean reservoir competence of 14 host species (10 mammals and 4 birds) for Anaplasma phagocytophilum, southeastern New York, USA, 2008–2010. Error bars indicate SE. Reservoir competence is defined as the mean percentage of ticks infected by any individual host of a given species. For inclusion, sample sizes for a species had to be ≥4 in ≥2 years. No species showed significant variation in reservoir competence across years (p>0.10, by 2-way analysis of variance or Kruskal-Wallis test as appropr

Figure 2. . . Mean reservoir competence of 14 host species (10 mammals and 4 birds) for Anaplasma phagocytophilum, southeastern New York, USA, 2008–2010. Error bars indicate SE. Reservoir competence is defined as the mean percentage of ticks infected by any individual host of a given species. For inclusion, sample sizes for a species had to be >4 in >2 years. No species showed significant variation in reservoir competence across years (p>0.10, by 2-way analysis of variance or Kruskal-Wallis test as appropriate, for all species tested). Single-letter abbreviations for genera along the left indicate Blarina, Didelphis, Peromyscus, Procyon, Sciurus, Tamias, Catharus, and Turdus, respectively.

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