TY - JOUR T1 - Effectiveness of Gaseous Ozone as a Disinfectant for Nosocomial Pathogens in a Healthcare Emergency Room A1 - Mohammed Ali Alshehri A1 - Fayez Saeed Bahwerth A1 - Zaher Ahmed Althagafi A1 - Hassan Abdullah Alsolami A1 - Ahmad Musa Almalki A1 - Ahmed Saif A1 - Sattam Almalki A1 - Abdulbari Abdulwahab Mazhar A1 - Mohammed Ahmed Alghamdi A1 - Ahmad Farouk A1 - Riham SadiqAshari A1 - Samer Mohammad Yousr A1 - Bandar Abdallah Bahwny A1 - Haitham Mohammad Al-Afghani A1 - Hamza Mohammad Assaggaf A1 - Riyadh Hussain Aeban A1 - Omar Bashir Ahmed A1 - Hani Mohammad Al-Afghani JF - Archives of Pharmacy Practice JO - Arch Pharm Pract SN - 2320-5210 Y1 - 2021 VL - 12 IS - 4 DO - 10.51847/UvHgz7UtJC SP - 17 EP - 24 N2 - Nosocomial infections are frequently caused by bacteria that are resistant to various antibiotics, resulting in the mortality or delayed recovery of hospitalized patients. Several studies have investigated the efficiency of ozone (O3) gas for the disinfection of surfaces to eliminate different nosocomial pathogens. In this study, the efficacy of O3 gas in a heavily contaminated healthcare facility was investigated using a low concentration of FDA-approved and human-safe O3. The total microbial loads on the air conditioning (AC) duct, wall, and tables after 1 month of O3 application were 0 CFU/100 cm2, 1 CFU/ 100 cm2, and 1 CFU/100 cm2, respectively. Moreover, the total microbial loads on the AC duct, wall, and tables 2 months after O3 application were 0 CFU/m2, 14 CFU/m2, and 1 CFU/m2, respectively. Finally, after the third month following O3 application, the microbial loads were 0 CFU/100 cm2 on the AC duct, 7 CFU/100 cm2 on the walls, and 54 CFU/100 cm2on the tables. Overall results show that O3 gas controlled fungal growth, as it was decreased to minimal levels on some swabbed surfaces or even eliminated on most swabbed medical devices and work surfaces. Moreover, O3 is capable of eradicating nosocomial pathogens present in hidden areas even at low concentrations that match the levels approved by the FDA for human exposure. The study concluded that gaseous O3 can serve as an effective, safe, and cheap disinfectant. O3 could effectively work to eliminate both nosocomial bacteria and mould pathogens. UR - https://archivepp.com/article/effectiveness-of-gaseous-ozone-as-a-disinfectant-for-nosocomial-pathogens-in-a-healthcare-emergency-xhdxfn5nm3xb8al ER -