Global biopharmaceutical company Sanofi (NASDAQ: SNY) encountered setbacks while developing its COVID-19 vaccine, and only this year reported results from late-stage clinical trials. Sanofi opted for the more traditional protein-based technology for its COVID-19 vaccine, Vidprevtyn, rather than the mRNA technology of Pfizer-BioNTech's Comirnaty and Moderna's Spikevax. The mRNA technology delivers genetic code instructing the body's cells to make the protein, while the more traditional approach produces the protein in a lab before injecting it into the body.
Moderna (NASDAQ: MRNA) was one of the best stocks to own last year as it brought its COVID-19 vaccine to market and generated billions in revenue. The company, which was a bit of an unknown before the pandemic began, has quickly risen in popularity.
Moderna (NASDAQ: MRNA) took center stage when it launched its coronavirus vaccine about a year and a half ago. Moderna recently reported that its booster candidate offers "superior" performance against the omicron variant.