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Volume 18, Number 12—December 2012

Dispatch

Reservoir Competence of Vertebrate Hosts for Anaplasma phagocytophilum

Felicia KeesingComments to Author , 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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Table 2

Host species infected with Anaplasma phagocytophilum southeastern New York, USA, 2008–2010*

Host species No. hosts infected/no. tested (%) No. (%) ticks infected Mean % infected ticks per infected host (range)
Mammals

Blarina brevicauda

17/28 (61) 67 (13) 20 (4–56)

Didelphis virginiana

9/25 (36) 20 (4) 13 (4–50)

Glaucomys volans

2/4 (50) 5 (8) 15 (14–16)

Mephitis mephitis

1/1 (100) 2 (10) 10

Peromyscus leucopus

15/30 (50) 63 (11) 22 (4–50)

Procyon lotor

10/25 (40) 17 (4) 9 (4–20)

Sciurus carolinensis

14/20 (70) 19 (5) 8 (4–20)

Sorex cinereus

2/6 (33) 4 (10) 23 (17–30)

Tamias striatus

10/19 (53) 40 (13) 24 (6–46)

Tamiasciurus hudsonicus

7/15 (47) 17 (6) 17 (4–73)
Birds

Catharus fuscescens

9/21 (43) 19 (4) 10 (4–25)

Dumetella carolinensis

7/14 (50) 20 (9) 18 (4–33)

Hylocichla mustelina

14/28 (50) 27 (5) 10 (4–25)

Turdus migratorius

6/18 (33) 7 (2) 6 (4–11)

*Infected hosts are those that transmitted A. phagocytophilum to >1 Ixodes scapularis tick larva.
†Host species with <10 individual hosts sampled.

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