Author ORCID Identifier

Halie M. Rando: 0000-0001-7688-1770

Ronan Lordan: 0000-0001-9668-3368

Likhitha Kolla: 0000-0002-1169-906X

Elizabeth Sell: 0000-0002-9658-1107

Alexandra J. Lee: 0000-0002-0208-3730

Nils Wellhausen: 0000-0001-8955-7582

Amruta Naik: 0000-0003-0673-2643

Jeremy P. Kamil: 0000-0001-8422-7656

Anthony Gitter: 0000-0002-5324-9833

Casey S. Greene: 0000-0001-8713-9213

Document Type

Article

Publication Date

3-1-2023

Publication Title

mSystems

Abstract

In the 21st century, several emergent viruses have posed a global threat. Each pathogen has emphasized the value of rapid and scalable vaccine development programs. The ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has made the importance of such efforts especially clear. New biotechnological advances in vaccinology allow for recent advances that provide only the nucleic acid building blocks of an antigen, eliminating many safety concerns. During the COVID-19 pandemic, these DNA and RNA vaccines have facilitated the development and deployment of vaccines at an unprecedented pace. This success was attributable at least in part to broader shifts in scientific research relative to prior epidemics: the genome of SARS-CoV-2 was available as early as January 2020, facilitating global efforts in the development of DNA and RNA vaccines within 2 weeks of the international community becoming aware of the new viral threat. Additionally, these technologies that were previously only theoretical are not only safe but also highly efficacious. Although historically a slow process, the rapid development of vaccines during the COVID-19 crisis reveals a major shift in vaccine technologies. Here, we provide historical context for the emergence of these paradigm-shifting vaccines. We describe several DNA and RNA vaccines in terms of their efficacy, safety, and approval status. We also discuss patterns in worldwide distribution. The advances made since early 2020 provide an exceptional illustration of how rapidly vaccine development technology has advanced in the last 2 decades in particular and suggest a new era in vaccines against emerging pathogens. IMPORTANCE The SARS-CoV-2 pandemic has caused untold damage globally, presenting unusual demands on but also unique opportunities for vaccine development. The development, production, and distribution of vaccines are imperative to saving lives, preventing severe illness, and reducing the economic and social burdens caused by the COVID-19 pandemic. Although vaccine technologies that provide the DNA or RNA sequence of an antigen had never previously been approved for use in humans, they have played a major role in the management of SARS-CoV-2. In this review, we discuss the history of these vaccines and how they have been applied to SARS-CoV-2. Additionally, given that the evolution of new SARS-CoV-2 variants continues to present a significant challenge in 2022, these vaccines remain an important and evolving tool in the biomedical response to the pandemic.

Keywords

COVID-19, DNA vaccines, mRNA vaccines, nucleic acid vaccines, review, SARS-CoV-2, vaccine equity, vaccines

Volume

8

Issue

2

DOI

10.1128/msystems.00928-22

Comments

Peer reviewed accepted manuscript.

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