Detection of Cryptosporidium and Cyclospora Oocysts from Environmental Water for Drinking and Recreational Activities in Sarawak, Malaysia

Table 1

Concentration of Cryptosporidium and Cyclospora oocysts from water samples abstracted by drinking water treatment plants.

Water sample	Date	Station	Water column	Oocyst/L
				Cryptosporidium	Cyclospora
Sungai Sarawak Kiri	25-01-17	Downstream	Surface	0.9	0.2
			Subsurface	1.1	0.1
		Midstream	Surface	0.3	ND
			Subsurface	0.2	ND
		Upstream	Surface	0.2	ND
			Subsurface	ND	ND
	08-02-17	Downstream	Surface	1.0	ND
			Subsurface	2.7	ND
		Midstream	Surface	0.4	ND
			Subsurface	0.7	ND
		Upstream	Surface	0.3	ND
			Subsurface	ND	ND
Total positive sample				10/12 (83.33%)	2/12 (16.67%)
Sungai Sarawak Kanan	01-02-17	Downstream	Surface	ND	ND
			Subsurface	ND	ND
		Midstream	Surface	0.3	ND
			Subsurface	ND	ND
		Upstream	Surface	0.5	ND
			Subsurface	ND	ND
	27-02-17	Downstream	Surface	ND	ND
			Subsurface	ND	ND
		Midstream	Surface	ND	ND
			Subsurface	0.1	ND
		Upstream	Surface	0.8	ND
			Subsurface	ND	ND
Total positive sample				4/12 (33.33%)	0/12 (0.00%)

/L denotes that the number of the oocysts is expressed per litre of water sample; ND denotes not determined.