In May 2011, Glenmark Pharmaceuticals entered into a licence agreement with Sanofi Aventis in one of the first-ever deals for a novel biologic molecule in India for the treatment of autoimmune diseases. Bharat Biotech, an Indian Biotech company, developed a diarrhoea vaccine to be supplied to the UN and other markets at $1 each, making it the cheapest vaccine available in the market.