Equine Piroplasmosis Associated with Amblyomma cajennense Ticks, Texas, USA.

Authors :: Scoles, Glen A.
Hutcheson, H. Joel
Schlater, Jack L.
Hennager, Steven G.
Pelzel, Angela M.
Knowles, Donald P.
Source :: Emerging Infectious Diseases. Oct2011, Vol. 17 Issue 10, p1903-1905. 3p. 2 Charts.
Publication Year :: 2011
Abstract: We report an outbreak of equine piroplasmosis in southern Texas, USA, in 2009. Infection prevalence reached 100% in some areas (292 infected horses). Amblyomma cajennense was the predominant tick and experimentally transmitted Theileria equi to an uninfected horse. We suggest that transmission by this tick species played a role in this outbreak. [ABSTRACT FROM AUTHOR]