"Between FY 2010 and FY 2019, eight U.S. companies that would later participate in the development of a COVID-19 vaccine—Gilead Sciences, Moderna Therapeutics, GlaxoSmithKline, Inovio, Johnson & Johnson Pharmaceuticals, Regeneron, Vir Therapeutics, and Sanofi—received approvals for 3,310 biochemists, biophysicists, chemists, and other scientists through the H-1B program."
https://www.americanimmigrationcouncil.org/research/h1b-visa-program-fact-sheet