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Volume 16, Number 3—March 2010


Borrelia, Ehrlichia, and Rickettsia spp. in Ticks Removed from Persons, Texas, USA

Phillip C. WilliamsonComments to Author , Peggy M. Billingsley, Glenna J. Teltow, Janel P. Seals, Meredith A. Turnbough, and Samuel F. Atkinson
Author affiliations: University of North Texas Health Science Center, Fort Worth, Texas, USA (P.C. Williamson, P.M. Billingsley, J.P. Seals); Texas Department of State Health Services, Temple, Texas, USA (G.J. Teltow); University of North Texas, Denton, Texas, USA (M.A. Turnbough, S.F. Atkinson)

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Table 3

No. ticks containing bacterial DNA sequences, Texas, October 1, 2004, to September 30, 2008*

Tick species Bacterial agent
Borrelia spp. B. burgdorferi Candidatus Borrelia lonestari Ehrlichia chaffeensis Candidatus Rickettsia amblyommii Candidatus Rickettsia cooleyi Rickettsia parkeri R. peacockii R. rhipicephali
Amblyomma americanum 4 2 77 2
A. cajennense 1 1 5
A. maculatum 1
Dermacentor variabilis 1 4 4 2 1
Ixodes scapularis 1 35 1
Rhipicephalus sanguineus



Total 1 1 5 4 87 35 5 5 1

*Ticks submitted to the Texas Department of State Health Services and identified by the University of North Texas Health Science Center, Tick-Borne Disease Research Laboratory. Only those tick species that showed evidence of containing Borrelia, Ehrlichia, or Rickettsia spp. are shown.

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