Publications by authors named "Neurisvan R Guerra"
The aim of this study was to detect DNA and antibodies anti-Leishmania spp., Neospora caninum and Toxoplasma gondii in captive and free-range crab-eating fox (Cerdocyon thous) from northeastern Brazil. Twenty-five crab-eating foxes from different states of northeastern Brazil were sampled by this study.
View Article and Find Full Text PDFPhlebotomines have worldwide distribution with many species present in Brazil, including the northeastern region, where the fauna is very diverse. The aim of this study was to identify the sandfly fauna in an area endemic for American cutaneous leishmaniasis (ACL) in the state of Pernambuco. Sandflies were caught on three consecutive nights every month from October 2015 to September 2016, from 5 pm to 5 am, using seven light traps of Centers for Disease Control (CDC) type.
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- The study investigates the role of marsupials, specifically Didelphis species, in the transmission of leishmaniasis in northeastern Brazil.
- Blood samples from 25 opossums were tested for Leishmania DNA, revealing a 16% positivity rate for L. (V.) braziliensis.
- The findings indicate that Didelphis albiventris may contribute to the spread of this parasite, posing an infection risk to local human populations due to the animals' movement between wild and urban areas.
Article Synopsis
- Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii, primarily affecting warm-blooded animals, including humans, with felines as the main host.
- A study conducted in Pernambuco, Brazil, analyzed 427 bovine serum samples using the immunofluorescent antibody test (IFAT) to check for anti-T. gondii IgG antibodies.
- Results showed a prevalence rate of 16.63%, with higher infection rates in males and in animals aged 25 to 36 months, indicating that bovine toxoplasmosis is common in the region.
The recombinant protein MSP5 has been established as an important antigen for serological diagnosis of Anaplasma marginale by enzyme-linked immunosorbent assay (ELISA). However, due to the high cost of specialized equipment, this technique is not accessible to all laboratories, especially in developing countries in areas where the disease is endemic. The present study describes the standardization of a latex agglutination test (LAT) to detect antibodies against A.
View Article and Find Full Text PDFThe aim of this paper was to study some epidemiological aspects of the infection by Brucella abortus in risk occupational groups in the microregion of Araguaína, Tocantins. For antibody research, 645 serum samples were analyzed by the complement fixation test (CF). A 4.
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