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Volume 22, Number 2—February 2016
Dispatch

Frequency and Distribution of Rickettsiae, Borreliae, and Ehrlichiae Detected in Human-Parasitizing Ticks, Texas, USA

Elizabeth A. Mitchell, Phillip Williamson, Peggy M. Billingsley, Janel P. Seals, Erin E. Ferguson, and Michael S. AllenComments to Author 
Author affiliations: University of North Texas Health Science Center, Fort Worth, Texas, USA (E.A. Mitchell, P.C. Williamson, P.M. Billingsley, J.P. Seals, E.E. Ferguson, M.S. Allen); Creative Testing Solutions, Tempe, Arizona, USA (P.C. Williamson); University of Utah, Salt Lake City, Utah, USA (P.M. Billingsley)

Main Article

Table 2

Number of positive bacterial DNA sequences identified for each human-parasitizing tick species, Texas, USA, October 1, 2008–September 30, 2014*

Tick
No. positive
Borrelia
Ehrlichia chaffeensis
Rickettsia
UNID
burgdorferi
lonestari
amblyommii†
parkeri
peacockii
rhipicephali
buchneri
Amblyomma americanum 0 0 8 2 179 0 0 0 0
A. cajennense 0 0 0 0 10 0 0 0 0
A. maculatum 2 0 0 0 0 5 0 0 0
Dermacentor variabilis 1 0 0 0 0 0 0 4 0
D. andersoni 0 0 0 0 0 0 2 0 0
Ixodes scapularis 0 1 0 0 0 0 0 0 44
Rhipicephalus sanguineus
0
0
0
0
0
0
0
0
0
Total
3
1
8
2
189
5
2
4
44
*Only tick species originating in Texas that tested positive for Borrelia, Ehrlichia, or Rickettsia spp. by DNA sequence analysis are shown. Additionally, 2 A. maculatum ticks from Texas were positive for Panola Mountain Ehrlichia. UNID, unidentified species.
†Candidatus species.

Main Article

Page created: January 15, 2016
Page updated: January 15, 2016
Page reviewed: January 15, 2016
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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