[Retracted] Contamination of Hospital Water Supplies in Gilan, Iran, with Legionella pneumophila, Escherichia coli, and Pseudomonas aeruginosa

Figure 3

Results of PCR with E. coli species specific primers for 13 incubator samples. Line 16 is 100–1000 bp ladder. Line 15 is negative control (water). Line 14 is positive control (E. coli type strain ATCC 44338). All samples (lines 1–13) are negative.