Wiping out smallpox had an unintended consequence: the rise of mpox in the past few years. Here's the story — starting with patient zero for mpox back in 1970.
Physician Céline Gounder traveled to India and Bangladesh to bring back unheard stories from the eradication of smallpox, many from health workers whose voices have been missing from the record.
It's basically the same vaccine used against smallpox. Here's how it works — and whether researchers think it's playing a role in the fact that the current outbreak is starting to slow down.