Nosema ceranae has parasitized Africanized honey bees in Mexico since at least 2004

Ernesto Guzman-Novoa, Mollah Md Hamiduzzaman, Miguel E Arechavaleta-Velasco, Gun Koleoglu, Pegah Valizadeh and Adriana Correa-Benitez School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada. Centro Nacional de Investigacion en Fisiologia y Mejoramiento Animal, INIFAP, km 1 Carretera a Colon, Ajuchitlan, Qro. Mexico. Departamento de Produccion Animal: Abejas, FMVZ, UNAM, Cd. Univ., Mexico DF 04510, Mexico.