Emerging Infectious Disease ISSN: 1080-6059

Evidence Against Rapid Emergence of Praziquantel Resistance in Schistosoma haematobium, Kenya

Charles H. King*, Eric M. Muchiri†, and John H. Ouma†

Author affiliations: *Case Western Reserve University School of Medicine and University Hospitals of Cleveland, Cleveland, Ohio, USA; †Ministry of Health, Nairobi, Kenya

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Figure 1

Yearly efficacy of drug therapy. Results of praziquantel treatment (solid bars) or metrifonate treatment (shaded bars) for Schistosoma haematobium infection in the Msambweni area during 1984 to 1992. Cure rates (conversion from egg-positive to egg-negative urine in annual follow-up testing) are shown for all egg-positive cases, by year of treatment. Only metrifonate therapy was given in 1987, and no treatment was given in 1988.

Figure 1. Yearly efficacy of drug therapy. Results of praziquantel treatment (solid bars) or metrifonate treatment (shaded bars) for Schistosoma haematobium infection in the Msambweni area during 1984 to 1992. Cure rates (conversion from egg-positive to egg-negative urine in annual follow-up testing) are shown for all egg-positive cases, by year of treatment. Only metrifonate therapy was given in 1987, and no treatment was given in 1988.

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