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Sci Adv
January 2025
State Key Laboratory of Remote Sensing Science, National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing Research Center for Respiratory Infectious Diseases, School of National Safety and Emergency Management, Center for Global Change and Public Health, Beijing Normal University, Beijing, China.
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.
View Article and Find Full Text PDFInfluenza Other Respir Viruses
January 2025
Nivel - Netherlands Institute for Health Services Research, Utrecht, The Netherlands.
Background: During the COVID-19 pandemic, atypical respiratory syncytial virus (RSV) circulation patterns emerged, with the occurrence of RSV activity outside the typical winter season. This study investigates the impact of COVID-19 and associated non-pharmaceutical interventions (NPIs) on RSV seasonality.
Methods: The onset, offset and peak of RSV epidemics from 2018 to 2022 across 12 European countries were determined using the 3% positivity threshold method.
Am J Epidemiol
January 2025
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.
Estimating the durability of immunity from vaccination is complicated by unreported re-vaccination, and unobserved natural infection or reexposure, which could result in overestimation of protection longevity. We tested serial cross-sectional serum samples from 2005 to 2015 (N=2,530) for IgG to examine measles seroprevalence, spatiotemporal patterns of titers across regions and antibody dynamics among children aged 1-9 years who grew up during varying measles circulation in Madagascar under a one-dose vaccination schedule. We found that measles seroprevalence has generally decreased over this time period.
View Article and Find Full Text PDFEur J Public Health
January 2025
Medical Evidence, Vaccines & Immune Therapies, BioPharmaceuticals Medical, AstraZeneca, Cambridge, United Kingdom.
Marketing authorization holders of vaccines typically need to report brand-specific vaccine effectiveness (VE) to the regulatory authorities as part of their regulatory obligations. COVIDRIVE (now id. DRIVE) is a European public-private partnership for respiratory pathogen surveillance and studies of brand-specific VE with long-term follow-up.
View Article and Find Full Text PDFThe ongoing panzootic of highly pathogenic avian influenza (HPAI) A(H5) viruses is the largest in history, with unprecedented transmission to multiple mammalian species. Avian influenza A viruses of the H5 subtype circulate globally among birds and are classified into distinct clades based on their hemagglutinin (HA) genetic sequences. Thus, the ability to accurately and rapidly assign clades to newly sequenced isolates is key to surveillance and outbreak response.
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