Comment by toomuchtodo

A wide net can be cast, but broadly speaking, you’ll want to start with your highest exposure and compliance (having to take a pill everyday is not great) risk patients first and work your way down as you scale up manufacturing and last mile infrastructure. Daily pill users turn into twice annual injection users, healthcare workers who could receive the injection at the workplace, etc.

This should, in theory, cause the infection rate to rapidly decline when you disrupt the most common and frequent transmission vectors. The slow long burn is going to be upkeep on all of this until HIV is eradicated (similar to the last days of a disease due to sufficient vaccination uptake, think smallpox).