[Serological survey for American cutaneous leishmaniasis in stray dogs in the S. Paulo State, Brazil]. / Inquérito sorológico sobre leishmaniose tegumentar americana em càes errantes no Estado de Sào Paulo, Brasil.

A serological survey was made in 973 stray dogs caught near green areas in S. Paulo county by the indirect immunofluorescence test. No positive serum was found, however autochthonous human cases of ACL that occurred in the county show the circulation of the parasite in the environment. This fact, associated with the existence of the vectors and the apparent absence of infected dogs in the areas studied, suggest that stray dog plays an insignificant role in the spread of the parasite. The cycle of the parasite in São Paulo county has been maintained by wild animals, hence the dog would be an accidental host just as humans.

The first two cases of Cyclospora in dogs, São Paulo, Brazil.

Cyclospora cayetanensis is a coccidium which has been identified in diarrheal feces or immunocompetent individuals or in AIDS patients. The main aspects related to its epidemiology and pathogeny have not been solved so far, as well as the possibility of human infection by this protozoan being a zoonosis. We describe in this work the first case identifying the Cyclospora in dogs. Our findings, notwithstanding their preliminary characteristics, could suggest that besides untreated water, other transmission means, along with contact with dogs, there could be important factors in the human diarrhea associated with Cyclospora.