GlaxoSmithKline Plc is a global healthcare company which engages in researching, developing and manufacturing of pharmaceutical medicines, vaccines and consumer healthcare products. It operates through the following four segments: Pharmaceuticals, Pharmaceuticals R&D, Vaccines and Consumer Healthcare. The Pharmaceuticals segment researches, develops and makes available medicines that treat a variety of serious and chronic diseases. The Vaccines segment produces pediatric and adult vaccines to prevent a range of infectious diseases including, hepatitis A and B, diphtheria, tetanus and whooping cough, measles, mumps and rubella, polio, typhoid, influenza and bacterial meningitis. The Consumer Healthcare segment markets a range of consumer health products based on scientific innovation. The company was founded in 1715 and is headquartered in Brentford, the United Kingdom.