2010s Haiti cholera outbreak

The 2010s Haiti cholera outbreak was the first modern large-scale outbreak of cholera—a disease once considered under control largely due to the invention of modern sanitation. The disease was reintroduced to Haiti in October 2010, not long after the disastrous earthquake earlier that year, and since then cholera has spread across the country and become endemic, causing high levels of both morbidity and mortality.

Source: Wikipedia — 2010s Haiti cholera outbreak (CC BY-SA 4.0)