Novavax, Inc., together with its subsidiary, Novavax AB, a late-stage biotechnology company, focuses on the discovery, development, and commercialization of vaccines to prevent serious infectious diseases. The company's lead vaccine candidates include ResVax, a respiratory syncytial virus (RSV) fusion (F) protein nanoparticle vaccine candidate that in Phase III clinical trial to protect infants from RSV disease through maternal immunization; and NanoFlu, which is in Phase III clinical trial for treating seasonal influenza in older adults. Its lead adjuvant is Matrix-M that is used to enable a vaccine to enhance the amplitude of the immune response and qualitatively change it, and the immune systems attack against microorganisms, as well as to allow immunization with much lower doses of antigen. The company is also developing RSV F vaccine for older adults (60 years and older) that is in Phase II clinical trial, as well as for healthy children between six months to five years of age that is in Phase I clinical trial. In addition, it develops nanoparticle vaccine candidates for clinic testing against ebola virus that is in Phase I clinical trial; and combination respiratory vaccine to protect against influenza and RSV. Further, the company is developing COVID-19 vaccine for coronavirus that causes pneumonia-like symptoms, which is in preclinical stage. It has a partnership agreement with Takeda Pharmaceutical Company Limited for the development, manufacturing, and commercialization of NVX-CoV2373, a COVID-19 vaccine candidate. Novavax, Inc. was founded in 1987 and is headquartered in Gaithersburg, Maryland.