Additionally, the researchers analysed the spike-protein sequences of all known variants of SARS-CoV-2 for commonalities, rendering what's known as a "consensus spike protein" as the basis for the vaccine's antigen. Read more: https://pharma.economictimes.indiatimes.com/news/pharma-industry/breakthrough-mrna-vaccine-offers-cost-effective-and-scalable-solutions-for-evolving-viruses/121715512