The spread of a virus to any society is a challenging issue for the economy. South Africa faces an epidemic spread of the Cholera virus.

"Zimbabwe's spreading cholera outbreak poses a threat to its neighbors South Africa, Zambia and Mozambique, United Nations and aid officials said on Tuesday.

Some 70,643 Zimbabweans have caught the water-borne diarrhea disease since August, and 3,467 have died as a result in Africa's deadliest outbreak in 15 years, according to United Nations statistics.

The International Federation of Red Cross and Red Crescent Societies (IFRC), the world's largest emergency relief network, said the incursion of cholera into Zimbabwe's remote rural areas made it increasingly hard to control and contain.

The last time South Africa had a large outbreak of cholera was in 2001 and 2002, when the country's southeastern region had 166,000 cases. The fatality rate of that outbreak was below 1 per cent, compared to the 4.9 per cent seen in Zimbabwe.

The spread of virus in any country can tax the health system, especially when the virus is widespread and the country is poor."