Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home

Volume 15, Number 4—April 2009


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)

Main Article


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
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.

Main Article

Top of Page The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO