An estimated 36.5 million people of working age have HIV and by next year the global labour force will have lost as many as 28 million workers due to AIDS since the start of the epidemic, according to a new global report by the International Labour Office (ILO) published today. What's more, the ILO estimates that in the absence of increased access to treatment, the number of workers lost due to HIV/AIDS will have increased to 48 million by 2010 and 74 million by 2015, making HIV/AIDS one of the biggest causes of mortality in the world of work.