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Table 3 Reported diagnostic performance according to product inserts of three RDTs under evaluation for the detection of Cryptosporidium spp. and/or Giardia infection in stool samples using microscopy as reference

From: Performance of three rapid diagnostic tests for the detection of Cryptosporidium spp. and Giardia duodenalis in children with severe acute malnutrition and diarrhoea

 SensitivitySpecificityPositive predictive valueNegative predictive value
QUIK-CHEK
Cryptosporidium spp.100%99.8%Not reportedNot reported
Giardia98.8%100%Not reportedNot reported
RIDA-QUICK
Cryptosporidium spp.93.8%100%100%97.5%
Giardia100%95.2%88.2%100%
CRYPTO/GIARDIA DUO-Strip
Cryptosporidium spp.86.7%100%100%97.5%
Giardia89.2%99.3%97.1%97.3%
  1. RDT Rapid diagnostic test