One very important development in the last couple of years has been the rollout of a program we call PrEP or Pre-Exposure HIV Prophylaxis. Individuals who are at risk through sexual contact of HIV can take a daily medication and prevent this from occurring. We are currently giving this medication by prescription and it's paid for by insurance companies to partners of patients who do not have HIV, but their partners do. So to protect them from acquiring it, they take a tablet every day. Individuals who are practicing high-risk sex without condoms in the community also are eligible for this therapy. The whole point is to prevent the transmission of HIV from one individual to another. This PrEP is very effective.