Experimental infection of opossums Didelphis aurita by Rickettsia rickettsii and evaluation of the transmission of the infection to ticks Alblyomma cajennense - Horta, Maurício Cláudio; Moraes-Filho, Jonas; Casagrande, Renata Assis; Saito, Taís Berelli; Rosa, Simone Cristina; Ogrzewalska, Maria; Matushima, Eliana Reiko; Labruna, Marcelo Bahia (Vector-Borne and Zoonotic Diseases, 2009)