World Health Day international, regional and local events on the Day related to a particular theme. World Health Day is acknowledged by various governments and non-governmental organizations with interests in public health issues, who also organize activities and highlight their support in media reports, such as the Global Health Council. World Health Day is one of eight official global health campaigns marked by WHO, along with World Tuberculosis Day, World Immunisation Week, World Malaria Day, World No Tobacco Day, World AIDS Day, World Blood Donor Day, and World Hepatitis Day. In 2006, World Health Day was devoted to the health workforce crisis, or
World Health Organization as a means to reduce traffic-related injuries. The WHO has also worked on global initiatives in surgery, including emergency and essential surgical care, trauma care, and safe surgery. The WHO Surgical Safety Checklist is in current use worldwide in the effort to improve patient safety. The World Health Organization's primary objective in natural and man-made emergencies is to coordinate with member states and other stakeholders to "reduce avoidable loss of life and the burden of disease and disability." On 5 May 2014, WHO announced that the spread of polio was a world health emergency – outbreaks of the disease in