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An Overview of Rift Valley Fever Vaccine Development Strategies. | LitMetric

An Overview of Rift Valley Fever Vaccine Development Strategies.

Vaccines (Basel)

Department of Infectious Diseases, Division of Medicine, Imperial College London, Norfolk Place, London W2 1PG, UK.

Published: October 2022

AI Article Synopsis

Article Abstract

Rift Valley fever (RVF) is a mosquito-borne viral zoonosis that causes high fetal and neonatal mortality in ruminants and a mild to fatal hemorrhagic fever in humans. There are no licensed RVF vaccines for human use while for livestock, commercially available vaccines are all either live attenuated or inactivated and have undesirable characteristics. The live attenuated RVF vaccines are associated with teratogenicity and residual virulence in ruminants while the inactivated ones require multiple immunisations to induce and maintain protective immunity. Additionally, nearly all licensed RVF vaccines lack the differentiating infected from vaccinated animals (DIVA) property making them inappropriate for use in RVF nonendemic countries. To address these limitations, novel DIVA-compatible RVF vaccines with better safety and efficacy than the licensed ones are being developed, aided fundamentally by a better understanding of the molecular biology of the RVF virus and advancements in recombinant DNA technology. For some of these candidate RVF vaccines, sterilizing immunity has been demonstrated in the discovery/feasibility phase with minimal adverse effects. This review highlights the progress made to date in RVF vaccine research and development and discusses the outstanding research gaps.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697312PMC
http://dx.doi.org/10.3390/vaccines10111794DOI Listing

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