Background: Outbreaks of filoviral hemorrhagic fever occur sporadically and unpredictably across wide regions in central Africa and overlap with the occurrence of other infectious diseases of public health importance.
Methods: As a proof of concept we developed a bivalent recombinant vaccine based on vesicular stomatitis virus (VSV) expressing the Zaire ebolavirus (ZEBOV) and Andes virus (ANDV) glycoproteins (VSVΔG/Dual) and evaluated its protective efficacy in the common lethal Syrian hamster model. Hamsters were vaccinated with VSVΔG/Dual and were lethally challenged with ZEBOV or ANDV. Time to immunity and postexposure treatment were evaluated by immunizing hamsters at different times prior to and post ZEBOV challenge.
Results: A single immunization with VSVΔG/Dual conferred complete and sterile protection against lethal ZEBOV and ANDV challenge. Complete protection was achieved with an immunization as close as 3 days prior to ZEBOV challenge, and 40% of the animals were even protected when treated with VSVΔG/Dual one day postchallenge. In comparison to the monovalent VSV vaccine, the bivalent vaccine has slightly reduced postexposure efficacy most likely due to its restricted lymphoid organ replication.
Conclusions: Bivalent VSV vectors are a feasible approach to vaccination against multiple pathogens.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3189997 | PMC |
| http://dx.doi.org/10.1093/infdis/jir379 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A subunit vaccine Ag85A-LpqH focusing on humoral immunity provides substantial protection against tuberculosis in mice.
iScience
January 2025
National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, China.
The importance of humoral immunity in combating TB has gained extensive recognition. In this study, a subunit vaccine named Ag85A-LpqH (AL) was prepared by fusing the antigen Ag85A proved to induce robust T cell immune responses, and LpqH was shown to produce protective antibodies. The prevention and BCG prime-boost mouse models were established to test the vaccine efficacy.
View Article and Find Full Text PDFEfficiency of indocyanine green fluorescence assisted laparoscopic hepatectomy in patients with hepatocellular carcinoma.
Pak J Med Sci
January 2025
Dongming Zhu Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province 215006, P.R. China.
Objective: To analyze the efficacy of indocyanine green fluorescence (ICG-F)-assisted laparoscopic hepatectomy in patients with hepatocellular carcinoma (HCC).
Methods: This retrospective study included 120 patients with HCC who underwent laparoscopic hepatectomy in The First Affiliated Hospital of Soochow University from February 2020 to November 2022. Among them, 58 patients underwent conventional laparoscopic surgery (laparoscopic group), and 62 patients underwent ICG-F assisted laparoscopic surgery (ICG-F group).
Parasitic infection prevalence in tuberculosis patients and their household contacts in the Littoral Region of Cameroon.
Parasite Epidemiol Control
February 2025
Parasites and Vector Biology Research Unit (PAVBRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon.
Background: Parasitic infections are known to suppress the cell mediated immunity that protects against tuberculosis. The status of parasitic infections among bacteriologically confirmed tuberculosis patients and their household contacts in Cameroon is not well established. This study aimed at reporting the status of parasitic infections in TB patients and their household contacts with keen interest in associated risk factors to disease exposure.
View Article and Find Full Text PDFAn injectable, self-healing, anti-infective, and anti-inflammatory novel glycyrrhizic acid hydrogel for promoting acute wound healing and regeneration.
Front Bioeng Biotechnol
January 2025
Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.
Introduction: Bacterial infection, a complex wound microenvironment, and a persistent inflammatory response in acute wounds can result in delayed healing and abnormal scar formation, thereby compromising the normal function and aesthetic appearance of skin tissue. This issue represents one of the most challenging problems in clinical practice. This study aims to develop a hydrogel dressing specifically designed for the treatment of acute wounds, providing immediate and effective protection for the affected areas.
View Article and Find Full Text PDFEvaluating the Role of Allopurinol in Mitigating Contrast-Induced Nephropathy in Percutaneous Coronary Intervention Patients: A Systematic Review and Meta-Analysis.
Cureus
December 2024
Diabetes and Endocrinology, Prabhath Diabetes Care Centre, Udupi, IND.
This meta-analysis investigates the potential of allopurinol to prevent contrast-induced nephropathy (CIN), a common and serious complication of percutaneous coronary intervention (PCI). CIN is particularly prevalent among high-risk populations, including patients with chronic kidney disease (CKD) or acute coronary syndrome (ACS), where the administration of contrast agents can exacerbate renal injury. Allopurinol, a xanthine oxidase inhibitor, is known for its dual action in reducing oxidative stress and uric acid production, positioning it as a promising therapeutic candidate to mitigate CIN.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!