Apr 3, 2025 · The bird with presumed prior influenza A virus exposure was in the 2-vaccine group and appeared to have a faster and generally stronger antibody response to vaccination than the other birds (Appendix Table 3). At 10 dpv, 2 (10%) birds had titers > 16; at 21 dpv, 13 (65%) birds had titers above that level, 19 (95%) did at 31 dpv, and 18 (90% ...

In 2020, four birds tested positive for the WNV genome at Zoopark Erfurt (Thuringia). Moreover, virus neutralization assays detected neutralizing antibodies (nAb) against WNV in 28 birds. In addition, nAb against WNV and Usutu virus (USUV) were found in 14 birds.

Duck plague (DP), also known as duck viral enteritis, is a worldwide disease caused by duck plague virus (DPV), a virus of the Herpesviridae family. DPV induces an acute disease with high mortality rates in flocks of ducks, geese, and swans (1 – 5).

Finally, we found that duck STING mediated autophagy significantly inhibited duck plague virus (DPV) infection via ubiquitously degraded viral proteins. Our study may shed light on one scenario about the control and evasion of diseases transmitted by migratory birds.

vaccinations at days 0 and 21, 10 birds given a single 1-mL vaccination at day 0, and 8 birds that were unvaccinated negative controls. Post-vaccination blood draws were conducted at 10, 21, 31, and 42 d after first vaccination. dpv, days post-vaccination; ID, identification; OD, optical density. Appendix Table 4.

Thus we developed a polymerase chain reaction (PCR) assay targeting to the DPV UL2 gene for simultaneous detection of DPV virulent strain and attenuated strain, 827bp for virulent strain and 299bp for attenuated strain. This newly developed PCR for DPV was highly sensitive and specific.

Jan 28, 2020 · In the present study, we isolated five types of duck primary cells [duck embryo fibroblasts (DEFs), neurons, astrocytes, peripheral blood mononuclear cells (PBMCs), and monocytes/macrophages] to identify appropriate cell models for DPV, using tropism infection and innate immunologic assays.

Apr 3, 2025 · Birds were vaccinated with a 1057.R1 serial 590088 Avian Influenza Vaccine, H5N1 subtype, reverse genetics-derived, inactivated vaccine. ... a Dunn’s multiple comparison (reporting a Z statistic and a p value). dpv, days postvaccination; HI, hemagglutination inhibition; NA, no difference detected so multiple comparison not relevant. †For ...

Jan 15, 2011 · In this study, we investigated the distribution of DPV gE protein on DPV-infected ducks using polyclonal antibody raised against the recombinant His-gE fusion protein by indirect immunofluorescence assay (IFA).

Duck plague (DP) is a severe disease caused by DP virus (DPV). Control of the disease is recognized as one of the biggest chal-lenges in avian medicine. Vaccination is an efficient way to control DPV, and an attenuated vaccine is the main routine vaccine.