Participants will be given the opportunity to receive HIV-1 test results. Preliminary counselling will be offered during study interviews. Where participants indicate that they would like to be advised as to their own HIV-1 serostatus, appointments will be arranged for them to visit a local clinic where a free counselling and testing service will be made available. Standard Ministry of Health and Child Welfare and WHO procedures will be followed throughout, with further serological tests being undertaken as required.