A health worker draws blood at a clinic in Benin. Lenacapavir, a new twice-yearly shot to prevent HIV, could soon be rolled out in similar settings around the world. | Pascal Deloche/Godong/Universal Images Group via Getty Images How often, on average, do you forget to take your daily meds? For me, it’s about twice a week. And that’s for something as low stakes as a vitamin D supplement; it’s not the end of the world if I’m a little deficient. But when it comes to HIV prevention, missing a dose of your prescribed daily prevention pills could mean the difference between protection and...

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