Frequency of positive and negative infection for Schistosoma mansoni and S. haematobium infected people from Ghana evaluated by Kato-Katz (KK), haematuria and polymerase chain reaction (PCR).

Combined PCR results mentioned at the bottom.* KK = Stool examination.** Haematuria = Blood in urine.*** The single false negative was repeated with several extractions. There was no amplification detected.