Delama Georges lives one stop from the end of the No. 2 train line in Brooklyn, right next to Holy Cross Cemetery. His proximity to so much death did not bother him until Nov. 9, 2011, when he learned that both his parents contracted cholera during a visit to his sister in Haiti. While Georges’ mother lay in a coma, brought on by dehydration from violent vomiting and diarrhea, his father died, joining more than 8,500 Haitians who died in the epidemic, which began four years ago this month.