This study reports that most patients with NSCLC had a significant increase in the nAb response to the currently circulating Omicron variants after bivalent booster vaccination and had Ab titers comparable to healthy participants. Interestingly, though the durability of the nAb response persisted in most of the healthy participants, patients with NSCLC had significantly reduced nAb titers after 4-6 months of vaccination. Our data highlight the importance of COVID-19 bivalent booster vaccination as the standard of care for patients with NSCLC given the evolution of new variants of concern.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10663480 | PMC |
http://dx.doi.org/10.1038/s41541-023-00779-8 | DOI Listing |
Vaccine
December 2024
Department of Epidemiology, Epiconcept, Paris, France.
Introduction: Repeated COVID-19 booster vaccination was recommended in healthcare workers (HCWs) to maintain protection. We measured the relative vaccine effectiveness (rVE) of the second booster dose of COVID-19 vaccine compared to the first booster, against laboratory-confirmed SARS-CoV-2 infection in HCWs.
Methods: In a prospective cohort study among HCWs from 12 European hospitals, we collected nasopharyngeal or saliva samples at enrolment and during weekly/fortnightly follow-up between October 2022 and May 2023.
bioRxiv
December 2024
Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA.
SARS-CoV-2 mRNA vaccines induce robust and persistent germinal centre (GC) B cell responses in humans. It remains unclear how the continuous evolution of the virus impacts the breadth of the induced GC B cell response. Using ultrasound-guided fine needle aspiration, we examined draining lymph nodes of nine healthy adults following bivalent booster immunization.
View Article and Find Full Text PDFJ Med Case Rep
December 2024
Department of Applied Physics, Faculty of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui, 910-8507, Japan.
Background: Vaccine protection against severe acute respiratory syndrome coronavirus 2 infection reduces gradually over time, requiring administration of updated boosters. However, long-term immune response following up to the sixth dose of the messenger RNA vaccine has not been well studied.
Case Presentation: We longitudinally determined anti-spike protein immunoglobulin G antibody levels in a 69-year-old Japanese man 76 times (first to sixth dose) to investigate their dynamics.
NPJ Vaccines
December 2024
Grupo Integrado de Pesquisa em Biomarcadores, Instituto René Rachou-Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brasil.
Streptococcus pneumoniae and influenza A virus (IAV) are significant agents of pneumonia cases and severe respiratory infections globally. Secondary bacterial infections, particularly by Streptococcus pneumoniae, are common in IAV-infected individuals, leading to critical outcomes. Despite reducing mortality, pneumococcal vaccines have high production costs and are serotype specific.
View Article and Find Full Text PDFBackground: Vaccination has been shown to attenuate the risk of post-acute sequelae following SARS-CoV-2 infection. However, no prior population-based studies have evaluated if updated bivalent boosters reduce risk of post-acute sequelae following Omicron-variant infection, versus ancestral vaccines.
Methods: National databases were utilised to construct a population-based cohort of adult individuals infected during Omicron-predominant transmission.
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