Gilead Sciences, Inc., a biopharmaceutical company, discovers, develops, and commercializes medicines in the areas of unmet medical need in the United States, Europe, and internationally. The company provides Biktarvy, Genvoya, Descovy, Odefsey, Truvada, Complera/ Eviplera, Stribild, Sunlencs, and Atripla products for the treatment of HIV/AIDS; Veklury, an injection for intravenous use, for the treatment of COVID-19; and Epclusa, Harvoni, Vemlidy, and Viread for the treatment of viral hepatitis. It also offers Yescarta, Tecartus, and Trodelvy products for the treatment of oncology; Letairis, an oral formulation for the treatment of pulmonary arterial hypertension; and AmBisome, a liposomal formulation for the treatment of serious invasive fungal infections. The company has collaboration agreements with Arcus Biosciences, Inc.; Merck Sharp & Dohme Corp.; Pionyr Immunotherapeutics Inc.; Tizona Therapeutics, Inc.; Galapagos NV; Janssen Sciences Ireland Unlimited Company; Japan Tobacco, Inc.; Dragonfly Therapeutics, Inc.; Arcellx, Inc.; Everest Medicines; Merck & Co, Inc.; Tentarix Biotherapeutics Inc.; Marengo Therapeutics; and Assembly Biosciences, Inc. It also has research collaboration, option, and license agreement with Merus N.V. for the discovery of novel dual tumor-associated antigens (TAA) targeting trispecific antibodies. The company was incorporated in 1987 and is headquartered in Foster City, California.

BioCryst Pharmaceuticals, Inc., a biotechnology company, develops oral small-molecule and protein therapeutics to treat rare diseases. The company markets peramivir injection, an intravenous neuraminidase inhibitor for the treatment of acute uncomplicated influenza under the RAPIVAB, RAPIACTA, and PERAMIFLU names; and ORLADEYO, an oral serine protease inhibitor to treat hereditary angioedema. It is also developing BCX10013, an oral factor D inhibitor for complement-mediated diseases. The company has collaborations and in-license relationships with the Torii Pharmaceutical Co., Ltd.; Seqirus UK Limited; Shionogi & Co., Ltd.; Green Cross Corporation; National Institute of Allergy and Infectious Diseases; Biomedical Advanced Research and Development Authority; the U.S. Department of Health and Human Services; and The University of Alabama at Birmingham, as well as Albert Einstein College of Medicine of Yeshiva University and Industrial Research, Ltd. BioCryst Pharmaceuticals, Inc. was founded in 1986 and is headquartered in Durham, North Carolina.

Vir Biotechnology, Inc., an immunology company, develops therapeutic products to treat and prevent serious infectious diseases. Its clinical development pipeline consists of product candidates targeting hepatitis delta virus (HDV), hepatitis B virus (HBV), and human immunodeficiency virus (HIV). The company's preclinical candidates include those targeting influenza A and B, coronavirus disease 2019, respiratory syncytial virus (RSV) and human metapneumovirus (MPV), and human papillomavirus (HPV). The company has grant agreements with Bill & Melinda Gates Foundation and National Institutes of Health; an option and license agreement with Brii Biosciences Limited; a collaboration and license agreement with Alnylam Pharmaceuticals, Inc.; license agreements with MedImmune, LLC; collaboration with WuXi Biologics (Hong Kong) Limited and Glaxo Wellcome UK Ltd.; and a collaborative research agreement with GlaxoSmithKline Biologicals S.A, as well as license agreement with Sanofi for three clinical-stage masked T-cell engagers (TCEs) and exclusive use of the protease-cleavable masking platform for oncology and infectious diseases. It also has a manufacturing agreement with Samsung Biologics Co.,Ltd. The company was incorporated in 2016 and is headquartered in San Francisco, California.

Arbutus Biopharma Corporation, a biopharmaceutical company, develops novel therapeutics for chronic Hepatitis B virus (HBV) infection in the United States. Its HBV product pipeline consists of imdusiran (AB-729), a proprietary subcutaneously-delivered RNAi therapeutic product candidate that suppresses all HBV antigens, including HBsAg expression. The company's research and development programs include AB-101, an oral PD-L1 inhibitor to reawaken patients' HBV-specific immune system; and small molecule antiviral medicines to treat coronaviruses, including COVID-19. It has licensing agreements with Gritstone Oncology, Inc; Alnylam Pharmaceuticals, Inc.; Qilu Pharmaceuticals Co, Ltd; Assembly Biosciences, Inc.; Acuitas Therapeutics, Inc.; and Antios Therapeutics, Inc. Arbutus Biopharma Corporation also has a clinical collaboration agreement with Barinthus Biotherapeutics plc to evaluate VTP-300. The company was formerly known as Tekmira Pharmaceuticals Corporation and changed its name to Arbutus Biopharma Corporation in July 2015. Arbutus Biopharma Corporation is headquartered in Warminster, Pennsylvania.

Atea Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, discovers, develops, and commercializes antiviral therapeutics for patients with viral infections. Its lead product candidate is AT-527, an oral antiviral candidate that is in Phase 3 SUNRISE-3 clinical trial for the treatment of patients with COVID-19. The company also develops bemnifosbuvir in combination with ruzasvir, which is in Phase 2 clinical trial, for the treatment of hepatitis C virus (HCV); and a protease inhibitor for the treatment of COVID-19. It has a license agreement with MSD International GmbH for the development, manufacture, and commercialization of Ruzasvir, an NS5A inhibitor, for the treatment of HCV. Atea Pharmaceuticals, Inc. was incorporated in 2012 and is headquartered in Boston, Massachusetts.

Enanta Pharmaceuticals, Inc., a biotechnology company, discovers and develops small molecule drugs for the treatment of viral infections and liver diseases. Its product pipeline comprises EDP-514, which is in phase 1b clinical development for the treatment of chronic infection with hepatitis B virus or HBV; EDP-938 and EDP-323, which is in phase II clinical development for the treatment of respiratory syncytial virus; EDP-235, which is in phase II clinical development for the treatment of human coronaviruses; and Glecaprevir, which is in the market for the treatment of chronic infection with hepatitis C virus or HCV. The company has a collaborative development and license agreement with Abbott Laboratories to develop, manufacture, and commercialize HCV NS3 and NS3/4A protease inhibitor compounds, including paritaprevir and glecaprevir. Enanta Pharmaceuticals, Inc. was incorporated in 1995 and is headquartered in Watertown, Massachusetts.

Vaxart, Inc., a clinical-stage biotechnology company, discovers and develops oral recombinant protein vaccines based on its proprietary oral vaccine platform. The company's product pipeline includes norovirus vaccine, a bivalent oral tablet vaccine in Phase 2 clinical trial for the GI.1 and GII.4 norovirus strains; coronavirus vaccine, which is in Phase 2 clinical trial, for the treatment of SARS-CoV-2 infection; seasonal influenza vaccine, which is in Phase 2 clinical trial, to treat H1 influenza infection; and human papillomavirus therapeutic vaccine, which is in preclinical stage, that targets HPV-16 and HPV-18 for cervical cancers and precancerous cervical lesions. It has a license agreement with Altesa Biosciences, Inc. to develop and commercialize Vapendavir, a capsid-binding broad-spectrum antiviral. Vaxart, Inc. is headquartered in South San Francisco, California.

NanoViricides, Inc., a clinical stage nano-biopharmaceutical company, discovers, develops, and commercializes drugs for the treatment of viral infections. The company's product portfolio includes NV-387 drug candidate developed for RSV and influenza indications and has completed phase 1a/1b human clinical trial for the evaluation of safety and tolerability; NV-387 as an active ingredient of drug product formulations for the treatment of COVID infections comprising NV-CoV-2 Oral Syrup and NV-CoV-2 Oral Gummies, a semi-solid fixed-dose form, which are in phase 1a/1b human clinical trials for enabling body-weight-based dose titration as is required for pediatric treatments. It also offers NV-387 Solution for injection, infusion, and inhalation to treat severe cases that are not hospitalized and carried out by an injection; and injectable solution that delivered directly into the lungs as a fog created using portable battery operated nebulizer devices, which enables action at infection by a respiratory virus, such as coronaviruses, RSV, influenzas, human meta-pneumovirus, certain adenoviruses, and other infections, that can lead to severe pneumonia. In addition, the company develops NV-HHV-1, a skin cream for the treatment of Shingles rash, which has completed non-clinical pharmacology studies; oral drug with NV-HHV-1 as the active ingredient for the treatment of HSV-1 cold sores and HSV-2 genital ulcers; and other drug candidates in HIVCide program for the treatment of Dengue and Ebola virus, as well as provides Nanoviricide platform technology to treat various types of viruses. NanoViricides, Inc. was incorporated in 2005 and is headquartered in Shelton, Connecticut.