Publications by authors named "Janice Mery Chicarino de Oliveira Coelho"

We describe a natural coinfection with canine distemper virus (CDV) and yellow fever virus in a free-ranging neotropical primate of the genus , found dead in the northeastern region of Brazil. The laboratory diagnosis included histopathology, immunohistochemistry, rRT-PCR, and phylogenetic analyses. The CDV sequences from this primate in Brazil represent a divergent lineage in Rio Grande do Norte, closely related to genotypes EU1/South America 1 and South America 2.

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  • - Dengue virus (DENV) can cause mild symptoms or lead to severe disease, including organ failure, with renal involvement linked to higher mortality rates.
  • - Post-mortem studies of four patients who died from DENV-4 in Brazil revealed significant renal damage, characterized by inflammation, tissue injury, and viral replication indicated by NS3 protein presence.
  • - The observed kidney damage likely resulted from a combination of high viral loads and an intense immune response, leading to increased secretion of inflammatory substances in the kidneys.
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  • Mammarenaviruses are typically associated with specific rodent host species, but recent findings indicate that multiple host species may harbor these viruses, challenging previous assumptions about their co-evolution.
  • A study in Brazil identified a new rodent reservoir species (Calomys callidus) linked to the Latino mammarenavirus (LATV), with genetic analysis revealing a well-supported group of LATV strains.
  • The research suggests that our understanding of mammarenavirus dynamics in South America is evolving, indicating that further studies in non-endemic areas may uncover additional animal hosts for these viruses.
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Mycetoma is caused by the subcutaneous inoculation of filamentous fungi or aerobic filamentous bacteria that form grains in the tissue. The purpose of this study is to describe the epidemiologic, clinic, laboratory, and therapeutic characteristics of patients with mycetoma at the Oswaldo Cruz Foundation in Rio de Janeiro, Brazil, between 1991 and 2014. Twenty-one cases of mycetoma were included in the study.

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Article Synopsis
  • Dengue fever poses a significant public health threat in Brazil, leading to serious outbreaks and health complications.
  • This study examines maternal and fetal deaths linked to dengue, analyzing tissues from the placenta and umbilical cord using advanced molecular techniques.
  • The presence of dengue virus markers in these tissues suggests that they could serve as valuable tools in investigating fatal cases of dengue, particularly those affecting mothers and their unborn children.
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