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Table 4 Ct values observed for real-time PCR assay in selected SEA countries

From: Presence of Cryptosporidium parvum and Giardia lamblia in water samples from Southeast Asia: towards an integrated water detection system

Country Type of water No. of samples C. parvum G. lamblia
Positive sample n(%) Mean Ct value CV Positive sample n(%) Mean Ct value CV
Malaysia Treated 9 N/Da N/D N/D N/D N/D N/D
Untreated 44 2 (4.5) 23.97 ± 3.8 0.16 12 (27.3) 30.49 ± 5.4 0.18
Thailand Treated 27 N/D N/D N/D N/D N/D N/D
Untreated 93 N/D N/D N/D 21 (22.6) 32.03 ± 4.7 0.15
Philippines Treated 10 N/D N/D N/D 1 (10.0) 32.26 ± 0 0
Untreated 23 1 (4.3) 36.53 ± 0 0 17 (73.9) 34.41 ± 3.5 0.10
Vietnam Treated 5 N/D N/D N/D N/D N/D N/D
Untreated 10 N/D N/D N/D N/D N/D N/D
  1. Treated water includes drinking water, water dispenser, mineral water, tap water and swimming pools
  2. Untreated water includes rain water, springs, wells, recreational lake, rivers, waterfalls, canals/channels and effluent water
  3. aN/D means not detected