I wanted to clarify my comment in the News on the study of pre-exposure prophylaxis for HIV transmission among young men who have sex with men (“Study assesses method of HIV prevention,” Feb. 19). I am supportive of any approach that might reduce new infections. My point is that we do not yet know if PrEP is effective, and the clinical trials may come back and tell us that it isn’t a viable strategy.

We need to start preventing new infections among young gay men now, with the current tools at our disposal, and hope that PrEP works so we can add it to our strategies for HIV prevention in the future.

Gregg Gonsalves

Feb. 19

The writer is a freshman in Ezra Stiles College.