Abstract
The duty to rescue is a highly plausible and powerful ethical principle. It requires agents to assist others in extreme need in cases where doing so does not conflict with some weighty moral aim; requires little personal sacrifice; and is likely to significantly benefit the recipients.1 As a general obligation, it binds all persons simply qua persons, and it is owed to all persons simply qua persons. Clinical investigators working in low-income countries frequently encounter sick or destitute people to whom they might possess a duty to rescue. Investigators may often ask themselves, what can I do, what should I do, to help? Such investigators often help people in the future by carrying out their...