Investigation ofPseudomonas aeruginosabacteria in a number of Baghdad schools and extent of their resistance to disinfectants and sterilizers

Shaimaa Hadi Al-Dulaimi and Miyada Kh Hassan

Arab Gulf Journal of Scientific Research, 2024, vol. 42, issue 4, 1805-1813

Abstract: Purpose - This study was design to investigate ofP. aeruginosa, an example of Gram-negative bacteria, in seven primary and secondary schools of Baghdad city, and the effects of Ethanol and Dettol ofP. aeruginosabiofilm. Design/methodology/approach - Seventy swabs were collected from seven primary and secondary schools of Baghdad city, Iraq, during November -December 2022. Swabs were collected from classes desk, doors handles, students hands and water taps. Standard microbiological testing methods were used on the samples for isolation and identification. The ability of bacteria to form biofilm and the effects of Ethanol and Dettol on “preformed” biofilms was examined by microtiter plate with the use of an ELISA reader. Findings - In 70 swabs from seven primary and secondary schools, growth was observed in 33 swabs asP. aeruginosa. Primary schools were higher contaminated than secondary and water taps and door handles represented the main source of this contamination. The ability of bacteria to produce biofilm was observed in 19 (57.6%) isolates and 14 (42.4%) nonbiofilm producers. As well as, Ethanol (70%) treatment of preformed biofilms led to enhance biofilm formation and revealed significantly greater staining after 4 and 24h than Dettol (3%) compared to an untreated control (tryptic soy broth (TSB) incubation). Originality/value - Studies onP. aeruginosain Iraqi schools are quite rare. This work is considered distinctive because it drew attention to the presence of pathogenic bacteria within primary and secondary schools, which are not considered their natural environment.

Keywords: P. aeruginosa; Preformed biofilms; Ethanol; Dettol (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eme:agjsrp:agjsr-06-2023-0239

DOI: 10.1108/AGJSR-06-2023-0239

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