noticeable decrease in the number of shigellosis cases was observed and subsequent water testing on 10 December 2012 showed no E. coli.
Conclusion:The sudden unprecedented increase in Shigella cases was likely due to contaminated potable water exposure and additional secondary cases. The investigation highlighted the necessity for continual monitoring of potable water quality and prompt corrective action to maintain a safe water supply in the district. The efficient, timely outbreak response resulted in appropriate public health interventions and underscores the value of a wellfunctioning DORT and NOU-DORT collaboration within the South African public health context.
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