The World Trade Organisation (WTO) is revising its General Agreement on Trade in Services (GATS) so as to increase international trade in services. If current proposals are implemented, GATS could be used to overturn almost any legislation governing services. Particularly under threat are public services -- health care, education, energy, water and sanitation. This briefing explores the potential for private companies to capture the most profitable components of publicly-provided and -funded health care services, leaving a reduced public sector to cope with the elderly, chronically sick and the poor who most need health care and who can least afford it.