Jean-Philippe Chauzy of the International Organization for Migration said Zimbabweans fleeing deprivation in their country were contributing to spreading the disease.
South Africa has reported seven cholera deaths over the last two weeks, all Zimbabweans or people who had recently come from the country.
Phuti Seloba, health department spokesman in the South African border town of Musina, said that dozens of cholera patients from Zimbabwe enter the country every day.
South African health authorities have set up five cholera treatment centres along the border to handle the influx, he added.
Zimbabwe belatedly changed its tune Thursday and asked for international help to fight the outbreak after long insisting that the situation was under control.
"With the coming of the rainy season, the situation could get worse," said deputy health minister Edwin Muguti. "Our problems are quite simple. We need to be helped."
Source-AFP
SRM