...Anglo American, like [other] multinational[s] in...Africa, is bringing technology to the fight against Aids, through a range of workplace treatment, testing and prevention programmes...[A]nalysis suggests…it takes three years for workplace treatment programmes to pay for themselves, as costs…are recouped through reduced absenteeism, lower health care charges and a decline in sick-related early retirement….[but] the full economic case is hard to demonstrate… [R]esearch suggests that for companies with…unskilled staff…the burden of Aids is modest [as] [c]ompanies can easily replace employees – putting the burden of treatment onto the government. [W]here there is…a more skilled and limited workforce, the impact is greater – and the response from employers has tended to be greater. For smaller companies, the impact of HIV is small and most lack the resources to develop their own programmes…Workplaces also offer an easy way to target men…for prevention programmes, though these are often not cost effective for companies alone since the…years between infection and treatment makes it difficult for an employer to recoup any investment...[also refers to De Beers]