Molecular Detection of Ehrlichia chaffeensis in Humans, Costa Rica (http://wwwnc.cdc.gov/eid/article/21/3/13-1759)

摘要

Human monocytic ehrlichiosis (HME), a tickborne zoonosis caused by the rickettsial pathogen Ehrlichia chaffeensis (Rickettsiales: Anaplasmataceae), is considered an emerging pathogen in the United States and, increasingly, in many countries around the world ( 1 ). In Costa Rica, past reports of human cases of ehrlichiosis were diagnosed solely by clinical evaluation and cytomorphology ( 2 , 3 ); recent studies have detected E. canis in dogs and their ectoparasites ( 4 , 5 ). However, molecular detection of natural Ehrlichia infection detected in humans in Costa Rica has not been reported.