A5042270748- Animal Disease Management and Epidemiology
- Virology and Viral Diseases
- T-cell and Retrovirus Studies
- Influenza Virus Research Studies
- Herpesvirus Infections and Treatments
- Vector-Borne Animal Diseases
- Virus-based gene therapy research
- Salmonella and Campylobacter epidemiology
- Listeria monocytogenes in Food Safety
- Viral gastroenteritis research and epidemiology
- Viral Infections and Vectors
- Cytomegalovirus and herpesvirus research
- Animal Virus Infections Studies
- Respiratory viral infections research
- HIV Research and Treatment
- Microbial infections and disease research
- Syphilis Diagnosis and Treatment
- Viral Infections and Immunology Research
- Bone and Dental Protein Studies
- Rabies epidemiology and control
- Livestock and Poultry Management
- Toxoplasma gondii Research Studies
- Vaccine Coverage and Hesitancy
- COVID-19 diagnosis using AI
- Plant Virus Research Studies
Ministry of Agriculture, Livestock, and Food Supply
2005-2024
Ministério da Agricultura
2006-2023
Federal Government of Brazil
2023
Hospital de Base
2021
Gembloux Agro-Bio Tech
2020
University of Liège
2020
Universidade Federal do Rio Grande do Sul
2001-2018
Brazilian Biosciences National Laboratory
2009
Several Avian paramyxoviruses 1 (synonymous with Newcastle disease virus or NDV, used hereafter) classification systems have been proposed for strain identification and differentiation. These pioneered efforts; however, they were based on different approaches lacked objective criteria the differentiation of isolates. differences created discrepancies among systems, rendering discussions comparisons across studies difficult. Although a system that was by Diel co-workers in 2012, ample...
Our study identified strains of the A/H5N1 virus in analyzed samples subsistence poultry, wild birds, and mammals, belonging to clade 2.3.4.4b, genotype B3.2, with very high genetic similarity from Chile, Uruguay, Argentina. This suggests a migratory route for birds across Pacific, explaining phylogenetic relatedness. The Brazilian displayed that had already been previously detected South America. Phylogeographic analysis transmission US viruses Europe Asia, co-circulating other lineages...
In 2021, the H5N1 virus lineage 2.3.4.4b spread to Americas, causing high mortality in wild and domestic avian populations. South American countries along Pacific migratory route have reported bird deaths due A/H5Nx since October 2022. However, limited genomic data resulted no cases Brazil until May 2023. its first case of highly pathogenic influenza (HPAI A/H5N1) The was detected Cabot's tern specimen Marataízes, Espírito Santo. Cases were also found backyard poultry other birds, but human...
This study was carried out during 2002/2003, aiming to determine the prevalence of virulent Newcastle disease virus strains (NDV) in Brazilian commercial poultry farms. Clinical samples were obtained from Southeastern, Southern and Central-Western regions, which comprise main area production. Serum tracheal cloacal swabs 23,745 broiler chickens 1,583 flocks, including both vaccinated those with no vaccination information, tested for NDV using a diagnostic ELISA kit. The seropositivity 39.1%,...
A novel avian paramyxovirus (APMV) isolated from a migratory bird cloacal swab obtained during active surveillance in April 2012 the Lagoa do Peixe National Park, Rio Grande Sul state, South of Brazil was biologically and genetically characterized. The nucleotide sequence full viral genome completed using next-generation sequencing approach. 14,952 nucleotides (nt) long, with six genes (3'-NP-P-M-F-HN-L-5') encoding 7 different proteins, typical APMV. fusion (F) protein gene isolate RS-1177...
Intracerebral pathogenicity index (ICPI) and mean death time (MDT) were determined using commercial live vaccines against Newcastle disease available in Brazil. The ICPI profiles obtained for B1 vaccine strains nonvirulent varied from 0 to 0.19, their MDT was 104-116 hours. LaSota had an varying between 0.02 0.37 92 116 the Clone 30 0.11 104 hours, respectively. For Ulster vaccines, >150 hours; VG-GA 0.03 140 C2, 0.04 >144 Eye drop vaccination IM challenge, at 1st week 4th week,...
Equine influenza is one of the major respiratory infectious diseases in horses. An equine virus outbreak was identified vaccinated and unvaccinated horses a veterinary school hospital São Paulo, SP, Brazil, September 2015. The twelve viruses isolated belonged to Florida Clade 1. hemagglutinin neuraminidase amino acid sequences were compared with recent isolates from North South America World Organisation for Animal Health recommended 1 vaccine strain. had nine substitutions, Two them...
In 2003, Brazil was recognized as a pathogenic Newcastle Disease Virus (NDV) strain-free country for commercial poultry. This research conducted in between December 2003 and March 2005 to verify the maintenance of this virulent NDV-free status. Serum samples from 5,455 flocks poultry farms were collected, comprising 81,825 broiler chickens. The located nine states country, grouped three geographic regions. Serological evidence NDV infection detected 28.8% surveyed farms. However, all fifteen...
Newcastle disease virus (NDV) can infect over 250 bird species with variable pathogenicity; it also humans in rare cases. The present study investigated an outbreak feral pigeons São Paulo city, Brazil, 2019. Affected birds displayed neurological signs, and hemorrhages were observed different tissues. Histopathology changes infiltration of mononuclear inflammatory cells found the brain, kidney, proventriculus, heart, spleen. NDV staining was detected by immunohistochemistry. Twenty-seven out...
The occurrence of Salmonella in a samples 40 imported day-old duckling flocks was assessed from 1998 to 2003 according the guidelines Brazilian National Poultry Health Program (Programa Nacional de Sanidade Avícola-PNSA). pathogen recovered 26 (65.0%). most common serovars were S. Saintpaul and Kottbus. Up four isolated single flock. Transportation box swabs (82.6%) yolk sac pool (47.1%) showed highest lowest frequency isolation, respectively. high percentage isolation ducklings causes...
Considering the importance of FeLV in feline clinic, as well likely agent spread from a symptomatic or asymptomatic bearer, this work has objective study frequency felines residents cities Pelotas and Rio Grande, municipalities located south area Brazil. For that, blood 120 semi-domiciled animals was collected for detection retrovirus through Indirect Immunofluorescence technique (IFA). detected 38,3% (46/120) studied animals, representing larger considering other studies accomplished areas...
The equine influenza virus (EIV) H3N8 subtype is responsible for all EIV outbreaks worldwide while the H7N7 less pathogenic and considered extinct as it has not been confirmed in since 1980. Although enzootic Brazil, few reports describe actual antibody status country. aims of this study were: - to evaluate efficiency different serum treatments described by World Organisation Animal Health (OIE) Organization (WHO) remove non-specific haemagglutination inhibitors inhibition (HI) assay...
O vírus da leucemia felina (FeLV) e o peritonite infecciosa (FIPV) têm sido descritos em animais selvagens de todo mundo são causadores enfermidades imunodepressoras que podem ser prejudicais à sobrevivência desses animais. trabalho teve por objetivo relatar a identificação FeLV FIPV felídeos cativeiro vida livre região do pantanal matogrossense. Um felídeo selvagem ( Felis pardalis) 16 (Felis yagouarundi, F. colocolo, weindii, concolor, Panthera onca) foram avaliados quanto presença através...
RESUMO A Artrite-encefalite dos caprinos (AEC) é uma doença infecciosa, multissistêmica, causada por um lentivírus, que acomete de todas as idades. As principais manifestações clínicas da são a leucoencefalomielite cabritos e artrite mais freqüente nos animais adultos. Os pulmões glândula mamária também podem ser afetados pelo vírus causando, respectivamente, pneumonia crônica intersticial mamite endurativa. Esta pesquisa teve como objetivo comparar técnicas imunodifusão em gel ágar, ensaio...
The control of Salmonella in the poultry production chain combined with biosecurity measures is an important tool to maintain and guarantee sanitary status Brazilian flocks. aim this work was compare official laboratory data on molecular typification isolates from breeding flocks different states between 2016 2018 identify category most positive flocks, light current legislation. Surveillance samples Control Programme sent Federal Agricultural Defence Laboratory São Paulo (LFDA-SP) after...
Candida albicans , integrante da microbiota normal do trato intestinal de muitos mamíferos e aves, raramente é isolada pele animais saudáveis, contudo, alterações no sistema imune podem favorecer o seu desenvolvimento. Para verificar possíveis associações com vírus leucemia felina (FeLV), tratamentos corticosteróides ou antimicrobianos outros parâmetros, foram obtidas 150 amostras pelame das mucosas bucal anal gatos região metropolitana Porto Alegre, RS. Os diversos materiais cultivados em...
In 2021, the H5N1 virus lineage 2.3.4.4b spread to Americas, causing high mortality in wild and domestic avian populations. South American countries along Pacific migratory route have reported bird deaths due A/H5Nx since October 2022. However, limited genomic data resulted no cases Brazil until May 2023. its first case of highly pathogenic influenza (HPAI A/H5N1) The was detected two Cabot's tern specimens Marataízes, Espírito Santo. Cases were also found backyard poultry other birds, but...
O objetivo deste trabalho foi analisar amostras de soro e células sangüíneas caprinos para detecção anticorpos DNA proviral do vírus da artrite-encefalite caprina (CAEV), respectivamente. Utilizou-se a técnica imunodifusão em ágar (AGID) reação cadeia polimerase (PCR) com "primers" degenerados. Foram analisadas diferentes procedências: 39 Mato Grosso Sul (MS), 19 São Paulo (SP) 22 Ceará (CE), dessas últimas, 12 oriundas animais importados Canadá. Os resultados AGID PCR foram discordantes,...
The analysis of Salmonella in the feces and birds’ environment is a way monitoring colonization flocks verifying need for introduction stricter controls, such that results tests should be known before being sent slaughter. polymerase chain reaction (PCR), as well other rapid methods represent alternatives increasingly used to detect enteric pathogens, but they proof effectiveness their wide use. aim this study was evaluate equivalence between obtained by methods: real-time PCR (BAX® System),...