Ensuring the Ethical Implementation of the New World Health Organization Pre-Exposure Prophylaxis Recommendations for Men Who Have Sex with Men.

The World Health Organization's (WHO) new recommendation to encourage pre-exposure prophylaxis in men who have sex with men (MSM) is an important step towards eradicating the HIV epidemic. However, the ethical issues of stigma, privacy and confidentiality, and access must be addressed in order to ensure the optimal implementation of this important recommendation.