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Table 5 Proposed categorisation of and intervention recommended in schools based on "red urine" prevalence

From: A national survey of the prevalence of schistosomiasis and soil transmitted helminths in Malaŵi

Prevalence of positive "red urine" question

Intervention recommended

> 30%

Undertake microscopy survey – if prevalence > 50% – Annual universal treatment. If <50% – Annual targeted treatment to children

< 30%

"Red urine" screen of schoolchildren every two years