Unnecessary ghosts from the past

I have recently read a book about the last big cholera epidemic in London which leads to one of the first great data visualisations, Snow’s Map. He counted the number of deaths at every location so this is how he found the center of the epidemic at the Broad Street pump and discovered that the contaminated water was responsible. Currently cholera is back in Zimbabwe on large scale. The most important thing of the treatment is simply clean water, which seems not to be available any more in a country which was one of the highest developed ones before 1980 and destroyed by the criminal regime of Robert Mugabe. It is time that the neighbour countries take care of this mess.

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