Selected Publications

Articles In Academic Journals

Year Title
2017 Identification and characterization of a histamine-binding lipocalin-like molecule from the relapsing fever tick ornithodoros turicataInsect Molecular Biology. 1-11.
2016 An in vitro blood-feeding method revealed differential Borrelia turicatae (Spirochaetales: Spirochaetaceae) gene expression after spirochete acquisition and colonization in the soft tick Ornithodoros turicata (Acari: Argasidae)J Med Entomol. 1-9.
2016 Comparing synganglion neuropeptides, neuropeptide receptors and neurotransmitter receptors and their gene expression in response to feeding in Ixodes scapularis (Ixodidae) versus Ornithodoros turicata (Argasidae)Insect Molecular Biology. 72-92.
2015 Experimental Vertical Transmission of Rickettsia parkeri in the Gulf Coast tick, Amblyomma maculatumTicks and tick-borne diseases. 568-573.
2015 Identification and comparative analysis of subolesin/akirin ortholog from Ornithodoros turicata ticksParasites & vectors. 132.
2015 Rickettsia parkeri Transmission to Amblyomma americanum by Cofeeding with Amblyomma maculatum (Acari: Ixodidae) and Potential for SpilloverJournal of Medical Entomology. 1090-5.
2014 TickBot: A novel robotic device for controlling tick populations in the natural environmentTicks and tick-borne diseases.
2014 Ticks and spotted fever group rickettsiae of southeastern VirginiaTicks and tick-borne diseases. 53-57.
2012 In vitro propagation of Candidatus Rickettsia andeanae isolated from Amblyomma maculatumFEMS Immunology and Medical Microbiology.
2011 Ixodes affinis (Acari: Ixodidae) in southeastern Virginia and implications for the spread of Borrelia burgdorferi, the agent of Lyme diseaseJournal of Vector Ecology. 464-467.
2011 Rickettsia parkeri in gulf coast ticks, southeastern Virginia, USAEmerg Infect Dis. 896-898.
2011 Tidewater Spotted Fever: Detection of Rickettsia parkeri in Gulf Coast ticks, southeastern VirginiaEmerging Infectious Diseases. 896-898.
2008 Molecular characterization and related aspects of the innate immune response in ticksFront. Biosci.. 7046-7063.
2008 Silencing expression of the defensin, varisin, in male Dermacentor variabilis by RNA interference results in reduced Anaplasma marginale infectionsExp Appl Acarol. 17-28.
2008 Using RNA interference to determine the role of varisin in the innate immune system of the hard tick Dermacentor variabilis (Acari: Ixodidae)Experimental and Applied Acarology/Springer Netherlands. p. 7-15.
2007 Sequence and the developmental and tissue-specific regulation of the first complete vitellogenin messenger RNA from ticks responsible for heme sequestrationInsect Biochemistry and Molecular Biology. 363-74.
2007 Tissue and life-stage distribution of a defensin gene in the Lone Star tick, Amblyomma americanumMed Vet Entomol. 141-147.
2005 A defensin-like gene expressed in the black-legged tick, Ixodes scapularisMed. Vet. Entomol.. 339-344.
2005 Host blood proteins and peptides in the midgut of the tick Dermacentor variabilis (Say) contribute to bacterial controlExp. Appl. Acarol.. 207-223.
2005 Host blood proteins and peptides in the midgut of the tick Dermacentor variabilis contribute to bacterial control.Exp. Appl. Acarol.. 207-223.
2005 In vivo role of 20-hydroxyecdysone in the regulation of the vitellogenin mRNA and egg development in the American dog tick, Dermacentor variabilis (Say)Journal of Insect Physiology. 1105-16.
2002 Expression of defensin-like peptides in tick hemolymph and midgut in response to challenge with Borrelia burgdorferi, Escherichia coli and Bacillus subtilisExp Appl Acarol. 127-134.
2002 Glass capillary tube feeding: a method for infecting nymphal Ixodes scapularis (Acari: Ixodidae) with the Lyme disease spirochete Borrelia burgdorferiJ Med Entomol. 285-292.
2002 Resistance of the tick Dermacentor variabilis (Acari: Ixodidae) following challenge with the bacterium Escherichia coli (Enterobacteriales: Enterobacteriaceae)J Med Entomol. 376-383.
2001 Contrasts in tick innate immune responses to Borrelia burgdorferi challenge: immunotolerance in Ixodes scapularis versus immunocompetence in Dermacentor variabilis (Acari: Ixodidae)J Med Entomol. 99-107.
2001 Identification of a defensin from the hemolymph of the American dog tick, Dermacentor variabilisInsect Biochem Mol Biol. 857-865.
2000 Enhancement of OspC expression by Borrelia burgdorferi in the presence of tick hemolymphFEMS Microbiol Lett. 137-141.
2000 Response of the tick Dermacentor variabilis (Acari: Ixodidae) to hemocoelic inoculation of Borrelia burgdorferi (Spirochetales)J Med Entomol. 265-270.
1998 Control of bacterial infections in the hard tick Dermacentor variabilis (Acari: Ixodidae): evidence for the existence of antimicrobial proteins in tick hemolymphJ Med Entomol. 458-464.


Year Title
2014 Tick-borne Rickettsioses II (Anaplasmataceae)Biology of Ticks Volume 2, Second Edition. Oxford University Press.
2001 Tick immunity to microbial infections: control of representative bacteria in the hard tick Dermacentor variabilis (Acrai: Ixodidae)Acarology: Proceedings of the 10th International Congress. Melborne, Australia: CSIRO Publishing.