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Volume 15, Number 4—April 2009

Dispatch

Correlation between Tick Density and Pathogen Endemicity, New Hampshire

Seth T. Walk, Guang Xu, Jason W. Stull, and Stephen M. RichComments to Author 
Author affiliations: University of Massachusetts, Amherst, Massachusetts, USA (S.T. Walk, G. Xu, S.M. Rich); New Hampshire Department of Health and Human Services, Concord, New Hampshire, USA (J.W. Stull); University of New Hampshire, Durham, New Hampshire, USA (J.W. Stull)

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Table

Pathogen prevalence and coinfection in 2 regions of different tick density, New Hampshire*

Infection No. ticks collected
HLI sites MLI sites Total
Single infection
Borrelia burgdorferi 237 29 266
Anaplasma phagocytophilum 1 0 1
Babesia microti
13
2
15
Multiple infections
B. burgdorferi + A. phagocytophilum 9 0 9
B. burgdorferi + B. microti 28 3 31
A. phagocytophilum + B. microti 0 0 0
B. burgdorferi + A. phagocytophilum + B. microti 0 0 0

*HLI, high Lyme disease incidence; MLI, medium Lyme disease incidence.

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