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Total and mean number of strains of Enterobacteriaceae resistant to antibiotics (A) and total and mean number of strains of E. coli resistant to antibiotics (B) in surface water and waste water.in Site #1 and Site #2 SW = Surface water, n.u.i = non under anthropic influence (sampling point surrounded by broad leaved forest); u.i = under anthropic influence (sampling point surrounded by urban areas or crops).
