In the wake of Hurricane Matthew, one Haitian-American doctor is fighting back against cholera, a disease that has devastated her parents’ home country. Starting just after sunrise each morning, Dr. Naima Joseph begins work at the cholera treatment unit in Les Anglais on Haiti’s southern peninsula. For about 12 hours each day, Naima and a dozen Haitian nurses and aides treat patients believed to be suffering from potentially lethal waterborne diseases.

Lawyers argue the U.N. should compensate victims of the disease allegedly spread by its peacekeepers.