With the emergence of the new variants of concern (VOC) of the SARS-CoV-2, the efficacy of certain vaccines against them requires further research and considerations for future scenarios of COVID-19 vaccination. The vaccines' lack of efficacy against VOC will pose at risk to the vaccinated population and is a public health threat. In this commentary, we discuss Nepal's recent experiences and expectations regarding the confirmation of VOC B.1.1.7 from the United Kingdom in the country.
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http://dx.doi.org/10.1016/j.tmaid.2021.102037 | DOI Listing |
JAMA Health Forum
January 2025
Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts.
Importance: Skilled nursing facilities (SNFs) experienced high mortality during the COVID-19 pandemic, leading them to adopt preventive measures to counteract viral spread. A critical appraisal of these measures is essential to support SNFs in managing future infectious disease outbreaks.
Objective: To perform a scoping review of data and evidence on the use and effectiveness of preventive measures implemented from 2020 to 2024 to prevent COVID-19 infection in SNFs in the US.
J Cell Mol Med
February 2025
Research Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico.
Molecules of the tumour necrosis factor superfamily (TNFSF) are key players in immune regulation; an increase in some TNFSF molecules has been reported during severe COVID-19. In this study, we profiled and evaluated TNFSF members in the serum of COVID-19 vaccine-naïve patients to identify potential biomarkers associated with disease severity. Our data show that TRAIL serum levels are lower in severely affected patients than those mildly affected by COVID-19 (AUC 0.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Republic of Singapore.
Intranasal delivery of mRNA vaccines offers promising opportunities to combat airborne viruses like SARS-CoV-2 by provoking mucosal immunity, which not only defends against respiratory infection but also prevents contagious transmission. However, the development of nasal mRNA vaccines has been hampered by the lack of effective means to overcome the mucus barrier. Herein, ionizable lipid-incorporated liquid lipid nanoparticles (iLLNs) capable of delivering mRNA cargo across airway mucosa are designed.
View Article and Find Full Text PDFPharmacoepidemiol Drug Saf
February 2025
Johnson & Johnson Innovative Medicine, Beerse, Belgium.
Purpose: With the introduction of COVID-19 vaccines, there has been a proliferation of quantitative benefit-risk assessments (qBRAs). Prior work on other types of vaccines has found that published qBRAs have not always clearly reported methods and/or results needed to assist in the application of the qBRA findings. The aim was to systematically identify, review, and critically assess published COVID-19 vaccine qBRA.
View Article and Find Full Text PDFNephrology (Carlton)
February 2025
Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Oita, Japan.
A 73-year-old Japanese man with chronic kidney disease had no history of abnormal clotting or bleeding. Six days after receiving his third dose of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine (BNT162b2; Pfizer/BioNTech), blood tests showed a marked prolongation of the prothrombin time-international normalised ratio and activated partial thromboplastin time, as well as a decrease in factor V (FV) activity. Three months later, he required dialysis owing to worsening heart and renal failure.
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