PrEP (Pre-exposure prophylaxis) is a biomedical tool to prevent HIV. However, there are debates: https://www.aidsmap.com/news/oct-2021/why-are-we-being-used-guinea-pigs-transgender-womens-mistrust-prep-research
The PrEP Controversy

PrEP (Pre-exposure prophylaxis) is a biomedical tool to prevent HIV. However, there are debates: https://www.aidsmap.com/news/oct-2021/why-are-we-being-used-guinea-pigs-transgender-womens-mistrust-prep-research