When confidential medical information can prevent a serious harm to a third party, the patient’s prima facie right to confidentiality must be balanced against the physician’s prima facie obligation to prevent serious harm to that third party.
AMA J Ethics. 2015;17(9):819-825. doi:
10.1001/journalofethics.2015.17.9.ecas1-1509.
Research is often conducted without the knowledge or consent of those whose tissues are banked and poses possible harms to social groups if information about a few members is unscientifically applied to all.
Patients who use drugs intravenously may be at high risk for relapse, but their situation is no more futile than that of persons with diabetes and coronary artery disease who smoke and frequent all-you-can-eat buffets.