AIDS, social work, and the "duty to protect".

This article discusses social workers' obligations in cases where clients with acquired immune deficiency syndrome (AIDS) pose a threat to a third party. Emphasis is on cases where a client diagnosed with AIDS withholds that information from a sexual partner. Legal and ethical issues concerning the limits of confidentiality and the social worker's "duty to protect" third parties are reviewed. Relevant case law and emerging ethical standards in various professions are summarized. The author reviews legal precedents concerning disclosure of confidential information without a client's permission and discusses their relevance to AIDS cases. Implications and guidelines for social workers are outlined.