Apr 27, 2020

A SARS-CoV-2 vaccine candidate would likely match all currently circulating strains

BioRxiv : the Preprint Server for Biology
B. L. DearloveMorgane Rolland

Abstract

The magnitude of the COVID-19 pandemic underscores the urgency for a safe and effective vaccine. Here we analyzed SARS-CoV-2 sequence diversity across 5,700 sequences sampled since December 2019. The Spike protein, which is the target immunogen of most vaccine candidates, showed 93 sites with shared polymorphisms; only one of these mutations was found in more than 1% of currently circulating sequences. The minimal diversity found among SARS-CoV-2 sequences can be explained by drift and bottleneck events as the virus spread away from its original epicenter in Wuhan, China. Importantly, there is little evidence that the virus has adapted to its human host since December 2019. Our findings suggest that a single vaccine should be efficacious against current global strains.

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Mentioned in this Paper

Study
Size
Chemically Induced
Cytoplasmic
Pests
Disease Management
Analysis
Insect Extract
Genetic Translation Process
Wolbachia

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