Soroprevalência para anticorpos anti-Toxoplasmagondii em uma propriedade na ilha do Marajó, Pará, Brasil.

A toxoplasmose é uma zoonose causada por Toxoplasma gondii, parasita intracelular obrigatório que tem como hospedeiros intermediários várias espécies animais, dentre estas, os equinos. Este trabalho teve por objetivo pesquisar a presença de anticorpos anti-T. gondiino soro de equinos das raças Marajoara e Puruca provenientes de uma propriedade da Ilha de Marajó. As amostras foram submetidas ao teste de Aglutinação Direta Modificada (MAD), na qual os soros foram diluídos na proporção de 1:25 até 1:800. Dos 45 equinos avaliados 13,3% (06/45) foram soros reagentes com títulos variando de 25 a 200. Conclui-se que no ambiente há presença do patógeno e causando infecção, com isso sugere-se que haja mais estudos para que seja elucidada a epidemiologia do parasita na região .Toxoplasmosis is a zoonosis caused by Toxoplasma gondii, a mandatory intracellularparasite that has as its intermediate hosts several animal species, among them, equines. This workaimed to investigate the presence of anti-T. gondii antibodies in the serum of horses of theMarajoara and Puruca breeds from a property on the island ofMarajó. The samples were submittedto the Modified Agglutination (MAT), in which the sera were diluted in the proportion of 1:25 to1:800. Ofthe 45 horses evaluated, 13.3% (06/45) were serum reagents with titers ranging from 25 to200. It is concluded that in the environment there is the presence of the pathogen and causinginfection, therefore it is suggested that there be more studies to elucidate the epidemiology of theparasite in the region

Negative results for anti-Leptospira sp. agglutinins in free-living Iguanas (Iguana iguana) from the Amazon region of Brazil

ABSTRACT: Although, serological studies for leptospirosis in iguanas have already been performed, there is no report in the Amazon region. Therefore, the present study aimed to investigate the presence of anti-Leptospira sp. in free living Iguanas-verdes (Iguana iguana) of Mangal das Garças Park, metropolitan region of Belém, Pará, Northern region of Brazil. Twenty-nine blood samples of Iguana-verde (I. iguana) were collected from Mangal das Garças Park. For the serological diagnosis of Leptospira sp. it was employed microscopic agglutination test (MAT) with 25 live antigens of Leptospira sp. as antigens. It was observed that all samples were non-reactive, suggesting no exposure to the agent