A preliminary investigation of Ehrlichia species in ticks, humans, dogs, and capybaras from Brazil

Marcelo B. Labruna, Jere W. McBride, Luis Marcelo A. Camargo, Daniel M. Aguiar, Michael J. Yabsley, William R. Davidson, Ellen Y. Stromdahl, Phillip C. Williamson, Roger W. Stich, S. Wesley Long, Erney P. Camargo, David H. Walker