The US Centres for Disease Control and Prevention (CDC) - driven by the slogan 'improving people's health by putting science into action' - is arguably the world's leading authority in controlling infectious diseases. The centre, first named the Communicable Disease Centre, was set up in central Atlanta, Georgia, in 1946 to fight malaria. The CDC, which adopted its current name in 1970, now has 8,500 staff members in its 12 centres in the city. For next year, it has been allotted a budget of US$6.5 billion. The centres cover: infectious diseases; birth defects and developmental disabilities; chronic disease prevention and health promotion; environmental health; health statistics; prevention of HIV, sexually transmitted disease and tuberculosis; injury prevention and control; immunisation programme; and occupational safety and health.