Publications by authors named "Gabriella da Silva Mendes"
Rotaviruses A and C in dairy cattle in the state of Rio de Janeiro, Brazil.
Braz J Microbiol
September 2022
Stool samples were collected from calves from nine family-based small dairy farms in the state of Rio de Janeiro, for detection and characterization of rotavirus (RV) species A, B, and C (RVA, RVB, and RVC, respectively) by reverse transcription polymerase chain reaction. Twenty-six samples (27.7%) were positive for at least one of the species: 22 (23.
View Article and Find Full Text PDFPorcine rotavirus C strains carrying human-like NSP4 and NSP5.
Zoonoses Public Health
December 2020
Background: Rotavirus C (RVC) is an enteric pathogen that affects humans and animals around the world.
Methods: In this study, we characterized the genetic diversity of RVC strains detected in asymptomatic Brazilian pigs by sequencing the NSP4, NSP5 and VP6 genes.
Results: The results of reverse transcription polymerase chain reaction showed that 53 of 579 samples (9.
Aims: To determine the frequency of viral pathogens causing upper respiratory tract infections in non-hospitalized, symptomatic adults in the city of Rio de Janeiro.
Methods: Respiratory samples (nasal/throat swabs) were collected between August 2010 and November 2012 and real time PCR was used to detect different viral pathogens.
Results: Viruses were detected in 32.
Asymptomatic influenza virus infections in pigs are frequent and the lack of measures for controlling viral spread facilitates the circulation of different virus strains between pigs. The goal of this study was to demonstrate the circulation of influenza A virus strains among asymptomatic piglets in an abattoir in Brazil and discuss the potential public health impacts. Tracheal samples (n = 330) were collected from asymptomatic animals by a veterinarian that also performed visual lung tissue examinations.
View Article and Find Full Text PDFArticle Synopsis
- The study evaluated the antiviral effects of the marine alga Ulva fasciata, collected from two beaches in Brazil, on human metapneumovirus (HMPV) replication.
- Four out of six extracts nearly completely inhibited viral replication, with most showing virucidal activity by interacting with the virus.
- Only two extracts were able to block the virus from entering cells, while one specific extract had intracellular activity, marking a pioneering investigation into the antiviral properties of this algae against HMPV in Brazil.
Objectives: Natural latex does not fall into the category of materials known to be entirely inoffensive. The purpose of this in vitro study was to test the hypothesis that there is no difference in the cytotoxicity between elastics of different colors and those from different manufacturers.
Material And Methods: Different latex intraoral elastics of different colors (5/16 = 7.