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Volume 16, Number 3—March 2010


Blood Meal Analysis to Identify Reservoir Hosts for Amblyomma americanum Ticks

Brian F. AllanComments to Author , Lisa S. Goessling, Gregory A. Storch, and Robert E. Thach
Author affiliations: Washington University in St. Louis, St. Louis, Missouri, USA (B.F. Allan, L.S. Goessling, R.E. Thach); St. Louis Children’s Hospital, St. Louis (G.A. Storch)

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Table 6

Estimates of reservoir capacity for reservoir hosts of Amblyomma americanum–associated zoonoses*

Host % Blood meals associated with 
pathogen infection (95% CI)
Ehrlichia chaffeensis E. ewingii
Ruminantia 2.1 (30 –75.2) 3.1 (33.0–70.8)
Sciurus 2.1 (3.7–37.9) 3.2 (4.5–32.1)
Leporidae 4.8 (1.2–29.8) 4.8 (0.8–21.0)
Passeriformes 0 1.1 (0.8–21.0)
Squamata/testudines 0 0

*CI, confidence interval. Borrelia lonestari is omitted because of the confounding influence of transovarial transmission.

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