These are very short courses, but these are lifesaving interventions.

In the developing world, where the penetration of antiretroviral therapy in adults is limited, the priorities were made to determine if one could prevent the next generation from getting infected.

Finding inexpensive drugs and effective and safe drugs for the developing world is an agenda item that is high on the world's list - but that requirement is lifelong. Here, we're talking about something that is a lot more feasible because it is single [dose treatment].

The efficacy is well-demonstrated. If used appropriately, it is sometimes lifesaving.

In the short term, it creates a pinch.

This skin surveillance imperative may serve to be lifesaving in predisposed women.