It may sound like the plot of a movie: police find a young man dead with stab wounds. Tests quickly show he'd had Ebola.
Officials realize the suspects in the case, men in a local gang, may have picked up and spread Ebola across the slum. These men are reluctant to quarantine themselves and some – including a man nicknamed "Time Bomb" – cannot even be found.
This scenario actually unfolded in the West African country of Liberia in 2015. And what followed was a truly unconventional effort by epidemiologists to stop a new Ebola outbreak.