Sudan has been stricken by a cholera outbreak that has killed nearly two dozen people and sickened hundreds more in recent weeks, health authorities said Sunday. The African nation has been roiled by a 16-month conflict and devastating floods. Health Minister Haitham Mohamed Ibrahim said in a statement that at least 22 people have died from the disease, and that at least 354 confirmed cases of cholera have been detected across the county in recent weeks. Ibrahim didn’t give a time frame for the deaths or the tally since the start of the year. The World Health Organization, however, said that 7…