A5087043455- Animal Virus Infections Studies
- Viral gastroenteritis research and epidemiology
- Animal Disease Management and Epidemiology
- Influenza Virus Research Studies
- Virology and Viral Diseases
- SARS-CoV-2 and COVID-19 Research
- Viral Infections and Vectors
- Viral Infections and Immunology Research
- Respiratory viral infections research
- Virus-based gene therapy research
- Plant Virus Research Studies
- Vector-Borne Animal Diseases
- Microbial infections and disease research
- Bacteriophages and microbial interactions
- Zoonotic diseases and public health
- Salmonella and Campylobacter epidemiology
- Immunodeficiency and Autoimmune Disorders
- vaccines and immunoinformatics approaches
- Syphilis Diagnosis and Treatment
- Herpesvirus Infections and Treatments
- Livestock and Poultry Management
- Animal Behavior and Welfare Studies
- Immune responses and vaccinations
- Plant and Fungal Interactions Research
- Parasitic Diseases Research and Treatment
National Veterinary Research Institute
2015-2025
National Influenza Center
2011
Background Over a 3-week period in late June/early July 2023, Poland experienced an outbreak caused by highly pathogenic avian influenza (HPAI) A(H5N1) virus cats. Aim This study aimed to characterise the identified and investigate possible sources of infection. Methods We performed next generation sequencing phylogenetic analysis detected viruses Results sampled 46 cats, 25 tested positive for virus. The belong clade 2.3.4.4b, genotype CH (H5N1 A/Eurasian wigeon/Netherlands/3/2022-like). In...
In late 2022 and early 2023, SARS-CoV-2 infections were detected on three mink farms in Poland situated within a few km from each other. Whole-genome sequencing of the viruses two showed that they related to virus identified humans same region 2 years before (B.1.1.307 lineage). Many mutations found, including S protein typical adaptations host. The origin remains be determined.
Broiler chickens with clinical signs of uneven growth, depression, and dull feathers were submitted to our laboratory and, at necropsy, lesions in proventriculus, gizzard, intestines detected. Fowl adenovirus serotype 1 (FAdV-1) was isolated from digestive tissues. The virus, assigned as FAdV-PL/G068/08, showed 99.5% nucleotide homology 99.2% amino acid hexon gene chicken embryo lethal orphan (CELO) strain classified the European reference FAdV-1. One-day-old 21-d-old SPF inoculated...
Persistence of H5N1 high pathogenicity avian influenza virus (HPAIV), isolated during the epidemic in wild birds Poland 2006, was evaluated three water samples derived from sources known to host (city pond, Vistula river mouth, and Baltic Sea). The tested at two concentrations (104 106 median tissue culture infective dose per milliliter) temperatures (4 C, 10 20 C), representing average seasonal Poland. All were filtered before inoculation, one unfiltered sample (Baltic seawater) also...
Since April 2020, when the first SARS-CoV-2 infection was reported in mink and subsequently farm workers Netherlands, it has been confirmed that human-to-mink mink-to-human transmission can occur. Later, infections were many European North American countries.Samples from 590 a total of 28 farms tested by real-time RT-PCR. Whole genome sequences one positive generated genetic relatedness established.SARS-CoV-2 RNA detected on breeder with stock 5,850 mink. Active viraemia individually samples...
Abstract The growing importance of the Usutu virus (USUV) as an emerging zoonotic viral pathogen motivated Poland to investigate epidemiological status USUV infections among native bird species. Consequently, out 357 birds tested, 34 avian individuals from different geographical areas country were confirmed be USUVpositive by RT‒PCR between July and November 2023. phylogenetic analysis revealed first recorded occurrence Africa 2 3 genetic lineages in Poland.
The highly pathogenic avian influenza virus (HPAIV) A(H5N1) has caused the most extensive and severe epizootic event affecting both poultry wild birds globally. This study investigated impact of HPAIV on breeding population Black-headed Gull Chroicocephalus ridibundus, abundant gull species in Poland. During 2023 outbreak, this was reported as frequently infected country. A higher-than-natural adult mortality rate (greater than 1.5% individuals) observed 114 surveyed colonies across all...
Avian astroviruses (aAstVs) are divided into three species, Avastrovirus 1, 2, and 3, but there a few strains waiting to be assigned an official taxonomic group. This study presents the molecular characterization of chicken astrovirus (CAstV), PL/G059/2014, which is involved in induction "white chicks" condition. The 7382-nucleotide-long genome sequence was determined by next-generation sequencing using Illumina MiSeq System. Phylogenetic analysis showed that it has characteristics typical...
Abstract Introduction Repeated incursions of highly pathogenic avian influenza virus (HPAIV) H5 subtype Gs/GD lineage pose a serious threat to poultry worldwide. We provide detailed analysis the spatio-temporal spread and genetic characteristics HPAIV H5N8 from 2019/20 epidemic in Poland. Material methods Samples free-living birds were tested by real-time RT-PCR. Whole genome sequences 24 (out 35) outbreaks generated relatedness was established. The clinical status possible pathways analysed...
Chicken astrovirus (CAstV) was recently indicated as the factor of "white chicks" condition associated not only with increased embryo/chick mortality but also weakness and white plumage hatched chicks. In February 2014, organ samples (livers kidneys) from dead-in-shell embryos, well 1-day-old whitish normal chicks, were delivered one hatchery in Poland for disease diagnosis. The originated same 30-week-old breeder flock which observed abnormal signs 4-5% decrease number chickens presence...
We examined 884 wild birds mainly from the Anseriformes, Charadriiformes and Galliformes orders for infectious bronchitis (IBV)-like coronavirus in Poland between 2008 2011. Coronavirus was detected 31 (3.5%) of tested birds, with detection rates 3.5% Anseriformes 2.3% as high 17.6% Galliformes. From positive samples, only 10 gave results molecular tests aimed at various IBV genome fragments: five samples were RdRp gene, four gene 3, eight N 3'-untranslated region fragment. All analysed...
Hedgehogs are common in the majority of European countries and known to host various pathogens, including viruses. The recent discovery MERS-related coronaviruses (CoVs) hedgehogs from Germany, France, UK, China, Italy suggests that may represent a wild reservoir betacoronaviruses. This study reports first detection characterization novel betacoronovirus, subgenus Merbecovirus Poland. CoV RNA was detected 10 out 40 hedgehogs' rectal swabs 1 18 samples lung. No viral identified duodenum...
Infectious bursal disease virus is an immunosuppressive ubiquitous pathogen that causes serious economic losses in poultry production. The prone to genetic changes through mutations and reassortment, which drive the emergence of new variants lead a change epidemiological situation field. Such currently being reported due large wave IBDV A3B1 reassortant infections northwestern Europe. On other hand, Poland, largest producer chicken meat EU, IBDVs genotypes A3B2 A3B4 were circulating just...
In April/May 2013, four outbreaks of avian influenza virus (AIV) infections caused by H9N2 subtype were diagnosed in Poland fattening turkey flocks exhibiting a drop feed and water intake, depression, respiratory signs mortality. The subsequent serological survey carried out on samples collected between June 2012 September 2013 from 92 poultry detected positive sera two additional meat located the same province. analysis amino acids haemagglutinin neuraminidase glycoproteins revealed that...
Between 2008 and 2011, commercial turkey chicken flocks in Poland were examined for the presence of parvovirus (TuPV) (ChPV). Clinical samples (10 individual faecal swabs/flock) from 197 (turkeys aged 1 to 19 weeks) 45 (chickens 3 17 collected different regions country tested using a PCR assay that targeted NS1 gene (3'ORF). The prevalence TuPV was 29.4 % tested, while ChPV infections found 22.2 studied flocks. Phylogenetic analysis revealed clear division into three groups: ChPV-like,...
The revealed prevalence of coronaviruses in wild bird populations Poland was 4.15% and the main reservoirs were birds from orders Anseriformes Charadriiformes, with a 3.51% 5.59%, respectively. Gammacoronaviruses detected more often than deltacoronaviruses, detection rates 3.5% 0.7%, belonging to six orders, including Anseriformes, Columbiformes, Galliformes, Gruiformes, Passeriformes, indicating relatively wide host range. Interestingly, this only coronavirus (3.51%), while 3.1%. identified...
Newcastle disease (ND) is a highly contagious and economically important in the poultry industry caused by avian avulavirus-1, historically known as virus (NDV). Control of ND primarily relies on prophylactic vaccination flocks, many vaccines are available market, both conventional more recently introduced new generation recombinant types. To assess protection level achieved ELISA tests typically used, they also to track an infection with field strains non-vaccinated flocks. Special...
The virulence of pigeon paramyxovirus type 1 (PPMV-1) for different species birds was investigated in two independent sets experiments which groups pigeons, chickens, turkeys, quails, and geese (10 per group) were inoculated with 106 median embryo infectious doses PPMV-1 isolate: 1) nonpassaged (nPPMV-1, intracerebral pathogenicity [ICPI] value = 1.27) 2) after six passages specific-pathogen-free chickens (pPPMV-1, ICPI 1.46) via the oculonasal route. Naive placed contact infected (two to...
Infectious bursal disease virus (IBDV) is the causative agent of a highly contagious immunosuppressive affecting young chickens. The recently described "distinct IBDV" (dIBDV) genetic lineage encompasses group worldwide distributed strains that share conserved characteristics in both genome segments making them unique within IBDV strains. Phenotypic characterization these scarce and limited to Asiatic European collected more than 15 years ago. present study aimed assess complete...
The aim of the present study was to report first detection a new infectious bronchitis virus (IBV) variant in Polish commercial flocks which is completely different any previously known this region. In 2018, samples from Ross 308 breeding hens aged 35 weeks were delivered for IBV diagnosis. presence detected, but all attempts amplify S gene fragment negative. field material analysed using Illumina MiSeq platform and 1073-nt S1 coding region obtained. gCoV/ck/Poland/516/2018 strain shared...