Publications by authors named "Diego Leandro Reis da Silva Fernandes"

Article Synopsis
  • - The study focuses on analyzing the genetic diversity of plague-causing bacteria in Brazil, despite the country currently experiencing low plague incidence, as indicated by the presence of antibodies in local wildlife.
  • - Researchers examined 407 bacterial genomes from the Fiocruz Collection and identified four main clades (C, E, G, and H) with varying absences of virulence genes, indicating a potential reduction in the bacteria's effectiveness as a pathogen over time.
  • - The findings also highlight connections between genetic data and historical epidemiological patterns, enhancing the understanding of plague evolution and the potential for future genomic applications in tracking disease outbreaks.
View Article and Find Full Text PDF

The plague caused by the bacterium is primarily a flea-transmitted zoonosis of rodents that can also be conveyed to humans and other mammals. In this work, we analyzed the spatial and temporal distribution of rodent populations during epizootic and enzootic periods of the plague in the municipality of Exu, northeastern Brazil. The geospatial analyses showed that all the rodent species appeared through the whole territory of the municipality, with different occurrence hotspots for the different species.

View Article and Find Full Text PDF

Along with other countries in America, plague reached Brazil through the sea routes during the third pandemic. A brief ports phase was followed by an urban phase that took place in smaller inland cities and finally, it attained the rural area and established several foci where the ecological conditions were suitable for its continued existence. However, the geographic dispersion of plague in Brazil is still poorly studied.

View Article and Find Full Text PDF

Plague, caused by the Yersinia pestis bacterium, has several foci scattered throughout a large area from the Brazilian territory that ranges from the Northeastern State of Ceará to the Southeastern State of Minas Gerais and another separated area at the State of Rio de Janeiro. This review gathers data from plague control and surveillance programs on the occurrence and geographic distribution of rodent hosts and flea vectors in the Brazilian plague areas during the period of from 1952 to 2019. Furthermore, we discuss how the interaction between Y.

View Article and Find Full Text PDF