By late December cholera had killed nearly 1,600 people in Zimbabwe and infected more than 30,000
The World Health Organization (WHO) reported. A waterborne bacterial disease, cholera causes severe diarrhea and dehydration. The WHO says the outbreak is being propelled by inadequate sanitation systems and insufficient supplies of clean water; a shortage of health care workers has also contributed to the spread. A WHO delegation has traveled to Zimbabwe's capital of Harare to lead a containment effort. Cases have also been reported in South Africa and Botswana.© 2009 Lippincott Williams & Wilkins, Inc.