HARARE:- The death toll in Zimbabwe's cholera outbreak has risen to 28, state media said Sunday, as the health minister announced new antibiotics were being used after the disease strain was found to be resistant to some drugs. The cholera outbreak, first detected in a township outside the capital Harare earlier this month, prompted the government to declare an emergency in the city after at least 3,000 cases were reported. "Although I cannot say we have contained the disease as yet, we are moving swiftly in all provinces of the country," health minister Obadiah Moyo told the state-owned Sunday Mail.