Related Experiment Video
Updated: Jan 11, 2026

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
Published on: November 5, 2021
SARS-CoV-2 variants: biology, pathogenicity, immunity and control
Ryuta Uraki1,2,3, Bette Korber4,5, Michael S Diamond6,7,8,9,10
1The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo, Japan.
Abstract:
More than 5 years have passed since the emergence of the novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), yet this virus continues to circulate globally, undergoing evolutionary changes. The effective control of SARS-CoV-2 necessitates an understanding of its antigenicity, replicative capacity, pathogenicity and transmissibility, as well as the development of preventive and treatment options. In this Review, we describe the origins and evolution of SARS-CoV-2, and outline variant and subvariant-specific characteristics. We also discuss the challenges faced in implementing prevention and treatment methods, such as the emergence of antigenically distinct variants and the phenomenon of immune imprinting. This Review provides insights into combating the ongoing COVID-19 pandemic and guidance for future research and vaccine development efforts.
More Related Videos
Related Concept Videos
Single Nucleotide Polymorphisms-SNPs
Viruses with RNA Genomes
Conjugated Proteins
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Viral Mutations
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Viral Recombination

