A5043255174- Influenza Virus Research Studies
- Animal Virus Infections Studies
- Animal Disease Management and Epidemiology
- Viral gastroenteritis research and epidemiology
- Viral Infections and Vectors
- Virology and Viral Diseases
- Viral Infections and Immunology Research
- Respiratory viral infections research
- Microbial infections and disease research
- Veterinary Oncology Research
- Animal Nutrition and Physiology
- Immune Response and Inflammation
- Virus-based gene therapy research
- Plant Virus Research Studies
- interferon and immune responses
- Vector-Borne Animal Diseases
- Animal health and immunology
- Herpesvirus Infections and Treatments
- Veterinary Pharmacology and Anesthesia
- T-cell and B-cell Immunology
- Bird parasitology and diseases
- Parasitic Infections and Diagnostics
- Coccidia and coccidiosis research
- Zoonotic diseases and public health
- Infectious Diseases and Mycology
Universitat Autònoma de Barcelona
2016-2025
Centre de Recerca en Sanitat Animal
2016-2025
Instituto de Investigación en Recursos Cinegéticos
2013
Département Santé Animale
2009
We evaluated the effects of a 6% spray-dried porcine plasma (SDPP) and plant extracts mixture (XT; 5% carvacrol, 3% cinnamaldehyde, 2% capsicum oleoresin) on productive performance, intestinal morphology, leukocyte cell subsets early-weaned pigs compared with control group. Morphometry jejunum, ileum, colon, immune analysis blood, ileocolic lymph node (LN), ileal Peyer's patches were done in 24 weaned (20 +/- 2 d) at 19 or 21 d postweaning. Although SDPP XT treatments did not increase ADG...
Abstract This study assessed the presence of sialic acid α-2,3 and α-2,6 linked glycan receptors in seven avian species. The respiratory intestinal tracts chicken, common quail, red-legged partridge, turkey, golden pheasant, ostrich, mallard were tested by means lectin histochemistry, using lectins Maackia amurensis agglutinin II Sambucus nigra agglutinin, which show affinity for receptors, respectively. Additionally, pattern virus attachment (PVA) was evaluated with an avian-origin H4N5 a...
Avian pathogenic Escherichia coli (APEC) are the major cause of colibacillosis in poultry production. In this study, a total 22 E. isolated from field cases and 10 avian faecal (AFEC) were analysed. All strains characterised phenotypically by susceptibility testing molecular typing methods such as pulsed-field gel electrophoresis (PFGE) multi-locus sequence (MLST). The presence 29 virulence genes associated to APEC human extraintestinal (ExPEC) was also evaluated. For cephalosporin resistant...
Avian influenza virus (AIV) currently causes a panzootic with extensive mortality in wild birds, poultry, and mammals, thus posing major threat to global health underscoring the need for efficient monitoring of its distribution evolution. We here utilized well-defined AIV strain systematically investigate genetic characterization through rapid, portable nanopore sequencing by comparing latest DNA RNA approaches various computational pipelines viral consensus sequence generation phylogenetic...
Circulation of highly pathogenic avian influenza (HPAI) viruses poses a continuous threat to animal and public health. After the 2005–2006 H5N1 2014–2015 H5N8 epidemics, another is currently affecting Europe. Up August 2017, 1,112 outbreaks in domestic 955 wild birds 30 European countries have been reported, largest epidemic by HPAI virus continent. Here, main epidemiological findings are described. While some similarities with previous epidemics were observed, for example pattern emergence,...
Infectious bronchitis is considered to be one of the most devastating diseases in poultry. Control its spread typically attempted through biosecurity measures and extensive vaccination. However, remarkable genetic antigenic variability virus, which originate from both mutations recombination events, represents an unsolved challenge for this disease. The present study reports on emergence recombinant clusters detected Italy Spain between 2012 2014. A total 36 Spanish Italian infectious virus...
The recent pandemic caused by human influenza virus A(H1N1) 2009 contains ancestral gene segments from North American and Eurasian swine lineages as well avian lineages. emergence of this poses a potential global threat for health the fact that it can infect other species, like pigs, favours possible encounter with viruses circulating in herds. In Europe, H1N1, H1N2 H3N2 subtypes currently have high prevalence commercial farms. To better assess risk posed actual situation farms, we sought to...
Abstract Avian influenza virus (AIV) currently causes a panzootic with extensive mortality in wild birds, poultry, and mammals, thus posing major threat to global health underscoring the need for efficient monitoring of its distribution evolution. Here, we utilized well-defined AIV strain systematically investigate characterization through rapid, portable nanopore sequencing by (i) benchmarking performance fully RNA extraction viral detection; (ii) comparing latest DNA approaches in-depth...
Abstract An experimental infection with highly pathogenic avian influenza virus (HPAIV) and low (LPAIV) was carried out in red-legged partridges ( Alectoris rufa ) order to study clinical signs, gross microscopic lesions, viral distribution tissues shedding. Birds were infected a HPAIV subtype H7N1 (A/Chicken/Italy/5093/1999) LPAIV H7N9 (A/ Anas crecca /Spain/1460/2008). Uninoculated birds included as contacts both groups. In birds, the first signs observed at 3 dpi, mortality started 4...
Several causes may induce change and atrophy in the bursa of Fabricius (BF). Databases on BF standards are available from published studies, however, updated references needed to adjust present changes highly specialized broiler genetic lines. The aim this study was evaluate BF-related measurements (weight dimensions) under controlled conditions that would mimic field situations. Chickens were kept isolation, thus avoiding exposure disease agents by vaccination or infections. This conducted...
Inclusion body hepatitis caused by different fowl aviadenovirus (FAdV) serotypes has been described in several countries recent years. In Spain, from the spring of 2011 to 2013, an increased number outbreaks broiler and breeder flocks regions occurred. The objectives present work were carry out molecular characterization FAdV strains Spanish inclusion cases study pathogenicity viral dynamics these specific pathogen-free (SPF) chickens. A total 52 clinical cases, including 45 farms seven...
Transmissible viral proventriculitis (TVP) and chicken proventricular necrosis virus (CPNV) affect the broiler industry globally are emerging diseases of economic importance. Here, we present findings TVP from processed carcasses in Argentina following marked condemnation at processing plant. We studied a total 122 abnormally presenting proventriculi 42-to-50-day-old, male Cobb500™ 11 farms belonging to same company 13 episodes proventriculi–gizzards between December 2021 April 2022. The...
White stork (Ciconia ciconia) may act as a reservoir and vehicle of cephalosporin resistant (CR) Escherichia coli. Between 2011 2014, we sampled white storks from colonies exposed to different degrees anthropic pressure across the major areas natural distribution in Spain. Cloacal swab samples (n = 467) were obtained individuals belonging 12 six regions. Additionally, 70 collected recently deposited droppings at base nesting platforms. We phenotypically characterized E. coli isolates,...
The objective of the present study was to evaluate involvement apoptosis in development post-weaning multisystemic wasting syndrome (PMWS) lymphoid-depletion lesions. Twenty-one pigs that were categorized into three different lesional severity stages (S1, n=5; S2, n=7; S3, n=9) and five healthy control (stage S0) used. From all pigs, samples thymus, spleen, tonsil, ileum superficial inguinal lymph node processed for histological examination, situ hybridization porcine circovirus type 2...
Selection of an ideal sample is a vital element in early detection influenza infection. Rapid identification infectious individuals or animals crucial not only for avian virus (AIV) surveillance programmes, but also treatment and containment strategies. This study used combination quantitative real-time RT-PCR with internal positive control cell-titration system to examine the presence different samples during active experimental AIV infection its persistence infected carcasses....
An experimental infection with highly pathogenic avian influenza (HPAI) and low (LPAI) viruses was carried out on falcons in order to examine the effects of these terms pathogenesis, viral distribution tissues shedding. The pattern virus receptors also assessed. Captive-reared gyr-saker (Falco rusticolus x Falco cherrug) hybrid were challenged a HPAI H5N1 (A/Great crested grebe/Basque Country/06.03249/2006) or LPAI H7N2 (A/Anas plathyrhynchos/Spain/1877/2009), both via nasochoanal route by...
Abstract In order to understand the mechanism of neuroinvasion a highly pathogenic avian influenza virus (HPAIV) into central nervous system (CNS) chickens, specific pathogen free chickens were inoculated with H7N1 HPAIV. Blood, cerebrospinal fluid (CSF), nasal cavity and brain tissue samples obtained from 1 4 days post-inoculation (dpi) infected control chickens. Viral antigen topographical distribution, presence A receptors in brain, as well as, role olfactory route CNS invasion studied...