Sinovac Biotech Ltd., a biopharmaceutical company, focuses in the research, development, manufacture, and commercialization of vaccines against human infectious diseases in the People's Republic of China. The company's product portfolio includes vaccines against hepatitis A and B; hand, foot, and mouth diseases caused by enterovirus 71 (EV71); seasonal influenza; H5N1 and H1N1 pandemic influenza; coronavirus; varicella; and mumps. Its marketed products include Healive, an inactivated hepatitis A vaccine; Bilive, a combined inactivated hepatitis A and B vaccine; Anflu, a split viron influenza vaccine; Panflu, a vaccine against the H5N1 influenza virus; Panflu.1, a vaccine against the influenza A H1N1 virus; mumps vaccine to treat viral disease in human species; split viron pandemic influenza vaccine; and Inlive, an EV71 vaccine.