GlaxoSmithKline plc (GSK) is global healthcare group, which is engaged in the creation and discovery, development, manufacture and marketing of pharmaceutical products, including vaccines, over-the-counter (OTC) medicines and health-related consumer products. GSK's principal pharmaceutical products include medicines in therapeutic areas: respiratory, anti-virals, central nervous system, cardiovascular and urogenital, metabolic, antibacterials, oncology and emesis, dermatology, rare diseases, immuno-inflammation, vaccines and human immunodeficiency virus (HIV). The Company operates in three primary areas of business: Pharmaceuticals, Vaccines and Consumer Healthcare. On January 30, 2013, GSK acquired additional 29.3% interest in GlaxoSmithKline Consumer Healthcare Ltd. In May 2013, GlaxoSmithKline PLC acquired Okairos AG.