We detected the DNA of an Anaplasma bovis-like bacterium in blood specimens from 4 patients from the United States with suspected tickborne illnesses. Initial molecular characterization of this novel agent reveals identity to A. bovis-like bacteria detected in Dermacentor variabilis ticks collected from multiple US states.
Keywords: Anaplasma bovis; Dermacentor andersoni; Dermacentor variabilis; United States; bacteria; human anaplasmosis; vector-borne infections; zoonoses.