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Table 2 The prevalence of Cryptosporidium and Giardia (oo)cyst under microscopic examination with IMS technique 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 Cryptosporidium Giardia
Positive sample n(%) Mean concentration (oocyst/L) Positive sample n(%) Mean concentration (cyst/L)
Malaysia Treated 9 N/Da N/D N/D N/D
Untreated 44 17 (38.6) 0.57 ± 1.41 22 (50.0) 0.92 ± 1.74
Thailand Treated 27 N/D N/D N/D N/D
Untreated 93 25 (26.9) 0.22 ± 0.59 20 (21.5) 0.12 ± 0.3
Philippines Treated 10 1 (10.0) 0.06 ± 0.19 1 (10.0) 0.02 ± 0.06
Untreated 23 11 (47.8) 0.13 ± 0.18 16 (69.6) 8.90 ± 19.65
Vietnam Treated 5 N/D N/D N/D N/D
Untreated 10 N/D N/D 5 (50.0) 0.51 ± 0.81
  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