Veterinary and Biomedical Sciences, Department of


Date of this Version



Ticks and Tick-Borne Diseases 7:1 (2016), pp. 154–158.

doi: 10.1016/j.ttbdis.2015.10.008


Copyright © 2015 Elsevier GmbH. Used by permission.


The lone star tick, Amblyomma americanum (L.) (Acari: Ixodidae), is established in southeastern Nebraska, yet the prevalence of tick-associated microorganisms is not known. An initial PCR-based analysis for Ehrlichia chaffeensis, Ehrlichia ewingii, and Borrelia infection in host-seeking adult ticks collected in southeast Nebraska was conducted. A total of 251 adult ticks collected in six sites in southeast Nebraska were tested. E. chaffeensis, E. ewingii, and Borrelia spp. were present, and the prevalence of each was approximately 1.6%. This study demonstrates that Ehrlichia spp. are present in Nebraska lone star tick populations.