Table 2

Distribution of Escherichia coli, Salmonella spp., and Vibrio cholerae tap-water and bottled mineral water-positive samples from Isfahan province, Iran in different seasons
Sample water Area July-August* September-October November-December Total positive
Western Isfahan (n = 36) 8 4 0 12 (33.33%)
Tap-water Central Isfahan (n = 36) 2 1 0 3 (8.33%)
(n = 144) Northern Isfahan (n = 36) 7 1 2 10 (27.77%)
Southern Isfahan (n = 36) 10 8 3 21 58.33%)
Total (n = 144) 27 14 5 46 (31.94%)
Bottled mineral water Company 1 (n = 56) 0 0 0 0 (0.0%)
(n = 304) Company 2 (n = 61) 2 1 0 3 (4.91%)
Company 3 (n = 46) 0 0 0 0 (0.0%)
Company 4 (n = 42) 0 0 0 0 (0.0%)
Company 5 (n = 69) 2 2 1 5 (7.24%)
Total (n = 304) 4 3 1 8 (2.63%)
Total (n = 448) Total (n = 448) 31 (6.91%) 17 (3.79%) 6 (1.33%) 54 (12.05%)

*Number of positive samples.

Momtaz et al.

Momtaz et al. BMC Public Health 2013 13:556   doi:10.1186/1471-2458-13-556

Open Data