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
Global Health Initiatives countries by researchers at the London School of Hygiene and Tropical Medicine (LSHTM), a 2005 study by McKinsey & Company and an assessment of the comparative advantages of the Global Fund and World Bank AIDS programs. Two wide-ranging studies were published in 2009: a study of interactions between GHIs and country health systems commissioned by the World Health Organisation and a study by researchers from LSHTM and the Royal College of Surgeons in Ireland. The latter study - The effects of global health initiatives on country health systems: a review of the evidence from HIV/AIDS control – reviewed the literature