Dynavax Technologies Corporation, a biopharmaceutical company, focuses on leveraging the power of the body's innate and adaptive immune responses through toll-like receptor stimulation. The company markets HEPLISAV-B, a hepatitis B vaccine for prevention of infection caused by all known subtypes of hepatitis B virus in adults age 18 years and older. Its immuno-oncology portfolio includes development stage products, such as SD-101 and DV281. Dynavax Technologies Corporation has a research collaboration with Clover Biopharmaceuticals; the University of Queensland and the Coalition for Epidemic Preparedness; and Sinovac Biotech Ltd. for the development of a vaccine candidate to prevent coronavirus (COVID-19). Dynavax Technologies Corporation has partnership with the Coalition for Epidemic Preparedness Innovations (CEPI) to create a vaccine against COVID-19 infection; and a collaboration with Valneva SE to initiate a vaccine program for the coronavirus, COVID-19. The company was formerly k