Occurrence of trypanosoma disease attacking sheep and cattle in the Amazonian Region was observed

Abstract

An unknown disease was observed by the authors, attacking cattle and sheep, in the State of Pará and in Amapá Federal Territory, in Brazil. A description is made of the disease involved. The region was studied as a whole, with particular reference to the farms visited. Reference is made to symptoms observed, to laboratory tests, and to the various treatments tentatively made. The association between climate and other environmental conditions, including the presence of blood-sucking insects, symptoms, reproductions of the disease, response to treatments applied, detection by the authors of trypanosomas in stained bood smears and blood unstained film, and the reference, 1946, by a Veterinarian working for Brazil Federal Ministry of Agriculture to a diagnosis made by him, have permitted the authors to admit, that the disease involved was a trypanosomiasis, possibly caused by Trypanosoma vivax. Recommendation is made in order that systematic research work go on for throwing some light on different trypanosomiasis in animal species having economic importance, with emphasis on cattle, sheep and domestic buffalo, in Amazonian Region, not only in Brazil, but in all ecologically similar regions in the neighbouring countries.