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We administered a questionnaire to participants who received different vaccination regimens to evaluate the effectiveness of Ad5-vectored COVID-19 vaccines. The results showed that administration of intramuscular Ad5-nCoV provided 21.32% more protection against SARS-CoV-2 infection than that of the inactivated COVID-19 vaccine in people who had received only one type of COVID-19 vaccine. Furthermore, aerosolized Ad5-nCoV exhibited good protection, whether it was administered as a homologous booster to people vaccinated with the intramuscular Ad5-nCoV or as a heterologous booster to people vaccinated with inactivated COVID-19 vaccines. Our research indicates that Ad5-nCoV is an effective booster. This finding supports the future selection of COVID-19 immunization strategies.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11370693 | PMC |
http://dx.doi.org/10.1080/22221751.2024.2396875 | DOI Listing |
Front Microbiol
August 2025
Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States.
Medical interventions, such as masks, were a cornerstone in mitigating the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Since 2019, the scientific community has increasingly focused on exploring avenues for pandemic prevention and preparedness to enhance responses to future viral outbreaks. One such area of interest explores the use of additives, such as silicon nitride (Si₃N₄), in masks to enhance the antiviral properties of personal protective equipment.
View Article and Find Full Text PDFAppl Environ Microbiol
September 2025
Department of Food, Nutrition, and Packaging Sciences, Clemson University, Clemson, South Carolina, USA.
Disinfectant wipes are widely used to reduce microbial contamination on surfaces, yet there is limited information on how viruses are physically removed or chemically inactivated during wiping. This study aimed to address this gap by comparing the contributions of physical removal and chemical inactivation to overall disinfection efficacy. Glass and vinyl coupons were contaminated with SARS-CoV-2 surrogates, bovine coronavirus (BCoV), or human coronavirus OC43, at an initial titer of 5-6 log TCID/surface with 5% soil load.
View Article and Find Full Text PDFBiosaf Health
August 2025
Department of Microbiology and Immunology, University of Nevada, Reno School of Medicine, MS320, Reno 89557 Nevada, United States of America.
The role of personal protective equipment (PPE) in protecting against exposure to infectious agents and toxic chemicals is well-established. However, the global surge in PPE demand during the pandemic exposed challenges, including shortages and environmental impacts from disposable waste. Developing effective, scalable, and sustainable decontamination methods for the reuse of PPE is essential.
View Article and Find Full Text PDFFood Environ Virol
September 2025
REDOLí Research Group, Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat de Valencia, Valencia, Spain.
The global emergence of SARS-CoV-2 has highlighted the urgent need for effective disinfection strategies to mitigate virus transmission. Electrolyzed water (EW), an eco-friendly and cost-effective biocidal agent, has garnered attention for its broad-spectrum antimicrobial activity. This study evaluates the virucidal, bactericidal, and fungicidal capacities of EW with diverse pH, with a focus on its effectiveness against SARS-CoV-2 and other pathogens.
View Article and Find Full Text PDFViral Immunol
September 2025
Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, China.
To assess the dynamics of humoral immune responses to inactivated SARS-CoV-2 vaccines across populations with and without prior COVID-19 infection, a longitudinal cohort study was conducted. A total of 38 COVID-19-recovered individuals and 165 naïve participants (without prior COVID-19 infection) were enrolled, all of whom completed a two-dose vaccination regimen. Levels of anti-spike (anti-S) and anti-nucleocapsid (anti-N) antibodies were analyzed at baseline and post-vaccination time points, including 6 weeks post-first dose, and 1 month and 6 months post-second dose.
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