Publicly traded U.S. companies working on COVID-19 vaccines are: AbbVie, Altimmune, Applied DNA Sciences, AstraZeneca, BioNTech & Pfizer, CureVac, Dynavax Technologies, GlaxoSmithKline, Heat Biologics, Inovio Pharmaceuticals, Johnson & Johnson, Merck, Moderna, Novavax, Sanofi, Vaxart & Emergent BioSolutions, and Vir Biotechnology & Biogen.