title: Conferencias magistrales
abstract: Ehrlichia chaffeensis, E. ewingii, E. canis, E. muris, and Anaplasma phagocytophilum. There is evidence supporting the concept that R. amblyommii infects humans, with one third of patients manifesting a mild self-limited illness and two thirds of persons subclinically infected. The prevalence of antibodies reactive with spotted fever group rickettsiae in ten percent or more of many populations in Amblyomma americanum-infested regions may have resulted from these asymptomatic and undiagnosed infe
journal: Biomédica