NEW : WHO confirms first case of cholera to originate entirely in Port - au - Prince . The official death toll from disease in Haiti is 544 . More than 8,000 cases have been reported . ` ` We 're working on it , '' Haiti 's environment minister says of the country 's government .
NEW : Hospital confirms first case of cholera to originate entirely in Port-au-Prince . The official death toll from cholera in Haiti is 544 . More than 8,000 cases have been confirmed . `` We 're working on it , '' Haiti 's environment minister says of the nation 's slums .