Investigation of tick vectors of Hepatozoon canis in Brazil.

摘要: Hepatozoon canis is a common apicomplexan parasite of dogs. In Brazil, in addition to Rhipicephalus sanguineus, Amblyomma ovale, cajennense, and (Boophilus) microplus have been suggested act as vectors. The present study aimed evaluate, under controlled conditions, the acquisition H. by A. R. cajennense after feeding on naturally infected Cytological histophatological examinations were performed recover oocysts other sporogonic stages protozoan from experimentally nymphs adults. None sanguineus (n=30) or (n=15) that dissected dogs became hemoparasite. Likewise, none (n=165) (n=114) adult ticks fed demonstrated infection. Additionally, incapable acquiring infection, since no was found 62 adults canis-infected With regard ovale ticks, 2 different infestations carried out. Firstly, dog with occurring hepatozoonosis infested originating Rondonia, Brazil. Ticks full engorgement. A total 31 collected third day natural detachment. Oocysts detected 13 (42%) ticks. second experimental infestation out using Sao Paulo, Surprisingly, 103 only one (1%) contained hemocoel. No stage found. Results indicate strains may exist Brazil susceptibilities pathogens. Furthermore, it possible little importance transmission rural areas