Table 4.

Distribution of osmo-tolerant Acanthamoeba spp. in Nile and tap water samples

Sampling site (Governorate)	Tap water		Nile water
	Osmo-tolerant +Ve samples/ Acanthamoeba +Ve samples
	+Ve/ No.	%	+Ve/ No.	%
Cairo	4/18	22.2	12/21	57.1
Giza	2/17	11.8	12/20	60.0
Qalubeya	12/32	37.5	16/19	84.2
Behera	2/20	10.0	18/23	78.3
Gharbeya	0/15	0.0	3/14	21.4
Dakahleya	1/27	3.7	5/24	20.8
Helwan	2/22	9.1	7/20	35.0
Kafr-Elshikh	0/16	0.0	-	-
Sharkeya	4/28	14.3	-	-
Minofeya	5/16	31.3	-	-
Total	23/211	10.9	73/141	51.8