Replicating RNA vaccine confers durable immunity against Crimean Congo hemorrhagic fever virus challenge in mice

Bibliographic Details
Title: Replicating RNA vaccine confers durable immunity against Crimean Congo hemorrhagic fever virus challenge in mice
Authors: Shanna S. Leventhal, Carl Shaia, Deepashri Rao, Matthew Lewis, Kimberly Meade-White, Jesse H. Erasmus, Heinz Feldmann, David W. Hawman
Source: npj Vaccines, Vol 9, Iss 1, Pp 1-9 (2024)
Publisher Information: Nature Portfolio, 2024.
Publication Year: 2024
Collection: LCC:Immunologic diseases. Allergy
LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Subject Terms: Immunologic diseases. Allergy, RC581-607, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
More Details: Abstract Spread by Hyalomma genus ticks, Crimean-Congo hemorrhagic fever virus (CCHFV) causes a severe hemorrhagic disease endemic throughout Southern and Eastern Europe, Asia, and Africa. To date, there are no widely approved vaccines for CCHFV and treatment for disease is largely supportive. Due to this lack of intervention, the WHO lists CCHFV as a high-priority pathogen. Recently, we described a highly efficacious self-replicating RNA vaccine which is protective against CCHFV disease in mice and non-human primates. This vaccine induces high titers of non-neutralizing anti-nucleoprotein (NP) antibodies and a robust T-cell response against the viral glycoprotein. Here, we assess the durability of this vaccine in mice by monitoring the immunogenicity and efficacy of this vaccine up to 1 year post vaccination. We found that while glycoprotein-specific T-cell responses and anti-NP antibody titers waned over time, mice remained protected against lethal CCHFV challenge for at least 1 year post vaccination.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2059-0105
Relation: https://doaj.org/toc/2059-0105
DOI: 10.1038/s41541-024-01045-1
Access URL: https://doaj.org/article/ef557fd2bab64e7589a41fc32cb11dfc
Accession Number: edsdoj.f557fd2bab64e7589a41fc32cb11dfc
Database: Directory of Open Access Journals
More Details
ISSN:20590105
DOI:10.1038/s41541-024-01045-1
Published in:npj Vaccines
Language:English