My research interests revolve around vectors and vector-borne diseases, especially ticks and tick-borne diseases. I have studied several pathogens of veterinary and medical importance, including the tick-borne bacterial pathogens Francisella sp., Rickettsia sp. Anaplasma sp., and Borrelia sp.; the tick-borne protozoal pathogens Babesia sp. and Theileria sp.; the flea-borne pathogen Rickettsia felis; and, mosquito-borne West Nile virus.