Cholera patient in Haiti. Photo by American Red Cross. A tropical storm bearing down on Haiti threatens to make daily life more miserable for tens of thousands homeless still living in tent camps and could deepen the cholera epidemic that…

Cholera patients in Port-au-Prince. Photo by Hector Retamal/AFP/Getty Images. The months-long rainy season is just beginning in Haiti, boosting the number of cases of cholera just as critical sanitation services are in limbo. Cholera is waterborne and often spreads…