RENBP and infection: In addition, recognizing Ag-RDT sensitivity could be as low as 48.9% for asymptomatic infections (18), applying this value to the 502 true positive Ag-RDTs observed in this study would increase the denominator to 1,027 and the resulting FDRs would be between 17.8% (222/1,249) and 23.8% (321/1,348).