tetano
Editor, Senior Moderator
Sci Adv
. 2025 Jan 24;11(4):eado9140.
doi: 10.1126/sciadv.ado9140. Epub 2025 Jan 22. Association of poultry vaccination with interspecies transmission and molecular evolution of H5 subtype avian influenza virus
Bingying Li[SUP] 1 [/SUP], Jayna Raghwani[SUP] 2 [/SUP], Sarah C Hill[SUP] 2 [/SUP], Sarah François[SUP] 3 4 [/SUP], Noémie Lefrancq[SUP] 5 [/SUP], Yilin Liang[SUP] 1 [/SUP], Zengmiao Wang[SUP] 1 [/SUP], Lu Dong[SUP] 6 [/SUP], Phillipe Lemey[SUP] 7 [/SUP], Oliver G Pybus[SUP] 2 3 [/SUP], Huaiyu Tian[SUP] 1 [/SUP]
Affiliations
The effectiveness of poultry vaccination in preventing the transmission of highly pathogenic avian influenza viruses (AIVs) has been debated, and its impact on wild birds remains uncertain. Here, we reconstruct the movements of H5 subtype AIV lineages among vaccinated poultry, unvaccinated poultry, and wild birds, worldwide, from 1996 to 2023. We find that there is a time lag in viral transmission among different host populations and that movements from wild birds to unvaccinated poultry were more frequent than those from wild birds to vaccinated poultry. Furthermore, our findings suggest that the HA (hemagglutinin) gene of the AIV lineage that circulated predominately in Chinese poultry experienced greater nonsynonymous divergence and adaptive fixation than other lineages. Our results indicate that the epidemiological, ecological, and evolutionary consequences of widespread AIV vaccination in poultry may be linked in complex ways and that much work is needed to better understand how such interventions may affect AIV transmission to, within, and from wild birds.
. 2025 Jan 24;11(4):eado9140.
doi: 10.1126/sciadv.ado9140. Epub 2025 Jan 22. Association of poultry vaccination with interspecies transmission and molecular evolution of H5 subtype avian influenza virus
Bingying Li[SUP] 1 [/SUP], Jayna Raghwani[SUP] 2 [/SUP], Sarah C Hill[SUP] 2 [/SUP], Sarah François[SUP] 3 4 [/SUP], Noémie Lefrancq[SUP] 5 [/SUP], Yilin Liang[SUP] 1 [/SUP], Zengmiao Wang[SUP] 1 [/SUP], Lu Dong[SUP] 6 [/SUP], Phillipe Lemey[SUP] 7 [/SUP], Oliver G Pybus[SUP] 2 3 [/SUP], Huaiyu Tian[SUP] 1 [/SUP]
Affiliations
- PMID: 39841843
- PMCID: PMC11753422
- DOI: 10.1126/sciadv.ado9140
The effectiveness of poultry vaccination in preventing the transmission of highly pathogenic avian influenza viruses (AIVs) has been debated, and its impact on wild birds remains uncertain. Here, we reconstruct the movements of H5 subtype AIV lineages among vaccinated poultry, unvaccinated poultry, and wild birds, worldwide, from 1996 to 2023. We find that there is a time lag in viral transmission among different host populations and that movements from wild birds to unvaccinated poultry were more frequent than those from wild birds to vaccinated poultry. Furthermore, our findings suggest that the HA (hemagglutinin) gene of the AIV lineage that circulated predominately in Chinese poultry experienced greater nonsynonymous divergence and adaptive fixation than other lineages. Our results indicate that the epidemiological, ecological, and evolutionary consequences of widespread AIV vaccination in poultry may be linked in complex ways and that much work is needed to better understand how such interventions may affect AIV transmission to, within, and from wild birds.