"India has placed an advance order to block 300 million doses of a new Covid-19 vaccine, Corbevax, from Hyderabad-based company Biological E. What is this vaccine, and why is it important for India? How Corbevax works
Corbevax is a “recombinant protein sub-unit” vaccine, which means it is made up of a specific part of SARS-CoV-2 — the spike protein on the virus’s surface."