A twice-a-year shot for HIV prevention could make it easier for people to protect themselves from the virus, argues an executive from Gilead Sciences, which developed the drug.

¡°You can go to your doctor, go behind a closed door, get the injection, walk out of the closed door, and no one knows why you were there,¡± said Jared Baeten, the company¡¯s senior vice president and virology therapeutic area head.

¡°No one knows that you have been there, and you don¡¯t have to think about it again until six months from now.¡±