Evaluation of in vitro antibacterial activity of some disinfectants on Escherichia coli serotypes.

In vitro efficacy of several disinfectants against Salmonella enterica serovar Enteritidis and Escherichia coli strains from poultry

“…Excellent capability of formaldehyde to kill the four strains is in line with that previously reported for Salmonella (McLAREN et al, 2011) and E. coli (EL-NAGGAR et al, 2001). However, its use at lower concentrations was considered to be insufficient to completely eradicate Salmonella (MARIN et al, 2009).…”

“…Potassium permanganate was highly effective but the activity of Virkon S, composed of several potassium derivatives, decreased substantially with BFS ( Figure 1a). EL-NAGGAR et al (2001) reported that this commercial compound inactivated E. coli after 5min of contact at the same concentration used by this research, which indicated that an exposure to Virkon S is not necessary to inactivate E. coli.…”

Nonantibiotic strategies to decrease the postbiopsy hospitalization rates because of infectious complications after transrectal prostate biopsy

“…In Groups 1 and 3, we used a 10% formalin solution for ND because it is a safe and powerful bactericidal solution; it already exists in the biopsy set. Issa et al 6 reported that ESBLp E. coli did not grow in the MacConkey culture dish, which is washed with formalin solution, and El‐Nagar et al 13 showed that 0.3%–0.6% formalin solution is enough to inactivate E. coli . In the former study, the author also reported that the amount of formalin used during biopsy ND is not toxic to the body.…”

Formalin disinfection of prostate biopsy needles may reduce post-biopsy infectious complications

“…Formalin has been shown to exhibit effective bacteriocidal activity against most pathogens, including Escherichia coli, at low concentrations by destroying bacterial fimbriae and pili and inhibiting protein synthesis. 29 In two additional ex vivo experiments, Issa et al 24 found that formalin is effective against fluoroquinolone-resistant strains of E. coli, suggesting a promising role for formalin in this setting without promoting antibiotic resistance. Several alternative strategies have been utilized to address this issue with variable efficacy, cost effectiveness and ease of implementation reported.…”

“…Although we may not capture the geographic variability in bacterial susceptibilities from other regions, we would not expect this to affect the efficacy of formalin. 24,29 Furthermore, post-biopsy urine cultures were obtained only if patients subsequently presented to our institution; thus, it is possible that we did not capture patients who may have had positive urine cultures drawn at another facility. However, all patients are scheduled to follow-up in our clinic to review biopsy results, and during this follow-up appointment, any post-procedural issues are discussed.…”