Table 1. Frequency of Acanthamoeba spp. in various water sources.

Sample type	Number of samples processed	Number of Acanthamoeba positive samples in NNA culture	%
Tap water	10	1	10
Drinking water	12	0	0
Swimming pool	12	2	16.7
Recreational water (samples from water fountain, artificial waterfalls at parks)	15	4	26.7
Borewell water (Stored tanks at date farms)	8	3	37.5
Total	57	10	17.5