“…Although few human cases have been described (23,31,35,41), Anaplasma strains have been detected in Ixodes ricinus ticks collected in different countries of Western Europe (5,7,14,17,22,32,34,38). The genus Ehrlichia includes the agent of human monocytic ehrlichiosis (Ehrlichia chaffeensis), mainly transmitted by Amblyomma americanum in the United States (11,15,43), and other species, mostly involved in animal infections. To our knowledge, just two human cases have been reported in Europe, based only on serologic evidence (26,33).…”