Introduction: We investigated a signal of solid organ transplant (SOT) rejection after immunisation with (AS03) A/H1N1 2009 pandemic influenza vaccines.
Methods: Potential immunological mechanisms were reviewed and quantitative analyses were conducted. The feasibility of pharmacoepidemiological studies was explored.
Results: Overall results, including data from a pharmacoepidemiological study, support the safety of adjuvanted (AS03) pandemic influenza vaccination in SOT recipients. The regulatory commitment to evaluate the signal through a stepwise investigation was closed in 2014.
Conclusion: Lessons learned highlight the importance of investigating plausible biological mechanisms between vaccines and potentially associated adverse outcomes, and the importance of selecting appropriate study settings and designs for safety signal investigations.
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http://dx.doi.org/10.1007/s40264-017-0532-3 | DOI Listing |
Disaster Med Public Health Prep
January 2025
Centre for Research and Education in Emergency Care, University of Leuven, Leuven, Belgium; REGEDIM, Free University Brussels, Brussels, Belgium; Department of Emergency Medicine, ZNA Camp Stuivenberg, Antwerp, Belgium.
Objective: Expanding staff levels is a strategy for hospitals to increase their surge capacity. The aim of this study was to evaluate whether emergency health care workers (HCWs) are willing to work during crises or disasters, and which working conditions influence their decisions.
Methods: HCWs in the emergency departments (EDs) and intensive care units (ICUs) of 5 Dutch hospitals were surveyed about various disaster scenarios.
Clin Chem
January 2025
Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA, United States.
Background: Institutions of higher education (IHE) have been a focus of SARS-CoV-2 transmission studies but there is limited information on how viral diversity and transmission at IHE changed as the pandemic progressed.
Methods: Here we analyze 3606 viral genomes from unique COVID-19 episodes collected at a public university in Seattle, Washington from September 2020 to September 2022.
Results: Across the study period, we found evidence of frequent viral transmission among university affiliates with 60% (n = 2153) of viral genomes from campus specimens genetically identical to at least one other campus specimen.
Front Immunol
January 2025
Nuffield Department of Medicine, Pandemic Sciences Institute, University of Oxford, Oxford, United Kingdom.
Whereas the intranasally delivered influenza vaccines used in children affect transmission of influenza virus in the community as well as reducing illness, inactivated influenza vaccines administered by intramuscular injection do not prevent transmission and have a variable, sometimes low rate of vaccine effectiveness. Although mucosally administered vaccines have the potential to induce more protective immune response at the site of viral infection, quantitating such immune responses in large scale clinical trials and developing correlates of protection is challenging. Here we show that by using mathematical models immune responses measured in the blood after delivery of vaccine to the lungs by aerosol can predict immune responses in the respiratory tract in pigs.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2025
College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, China.
Swine influenza virus (SIV) is a highly contagious pathogen that poses significant economic challenges to the swine industry and carries zoonotic potential, underscoring the need for vigilant surveillance. In this study, we performed a comprehensive genetic and molecular analysis of H3N2 SIV isolates obtained from 372 swine samples collected in Shandong Province, China. Phylogenetic analysis revealed two distinct genotypes.
View Article and Find Full Text PDFVirol Sin
December 2024
Guangdong Laboratory for Lingnan Modern Agriculture, State Key Laboratory for Animal Disease Control and Prevention, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, Guangzhou 510642, China. Electronic address:
A switch from avian-type α-2,3 to human-type α-2,6 receptors is an essential element for the initiation of a pandemic from an avian influenza virus. Some H9N2 viruses exhibit a preference for binding to human-type α-2,6 receptors. This identifies their potential threat to public health.
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