GlaxoSmithKline plc. (GSK) is a healthcare company that researches and develops pharmaceuticals, vaccines and consumer healthcare products. The Company operates in two segments: Pharmaceuticals and Vaccines, and Consumer Healthcare. The Pharmaceuticals segment develops and makes medicines to treat a range of acute and chronic diseases. Its human immunodeficiency virus (HIV) business is managed through ViiV Healthcare. GSK's Vaccines has a portfolio of over 30 paediatric, adolescent, adult travel vaccines. GSK's Established Products Portfolio includes over 50 off-patent products, as well as its branded generics business and other local products. The Consumer Healthcare business develops and markets products in four categories, such as wellness, oral health, nutrition and skin health. Its brands include Sensodyne, Panadol, Horlicks, Polident, Paradontax, Tums, ENO, NiQuitin/Nicorette, Abreva, Zovirax and Aquafresh. It operates in the United Kingdom, the United States, Belgium and China.