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.

Men who have sex with men in the metro Atlanta area may be at risk of contracting monkeypox. The Georgia Department of Public Health said Friday there is enough vaccine for 1,500 people.

Their prediction stemmed from the eradication of smallpox. Here's what they said more than three decades ago — and how it foreshadowed events of 2022.