Prevalence of Bacterial Contamination of Tikrit Teaching Hospital Surfaces and Equipment in Different Units

Marwan Salim  Hameed; Sarah Abdulhameed  Hasan

doi:10.17605/cajmns.v6i2.2747

Marwan Salim Hameed Department of Biology, College of Education for Pure Sciences, Tikrit University, Iraq
Sarah Abdulhameed Hasan Department of Biology, College of Education for Women, Tikrit University, Iraq

DOI: https://doi.org/10.17605/cajmns.v6i2.2747

Keywords: Bacterial Contamination, Hospital Surfaces, Healthcare-Associated Infections, E. Coli, S. Aureus, Infection Control, Tikrit Teaching Hospital

Abstract

General Background: Hospital environments serve as potential reservoirs for pathogenic bacteria, contributing to the spread of healthcare-associated infections (HAIs). Contaminated surfaces and medical equipment pose a risk to patient safety and increase morbidity rates. Specific Background: The Tikrit Teaching Hospital in Iraq is a key medical facility where the presence of bacterial contamination on hospital surfaces and equipment requires systematic investigation. This study aimed to assess the bacterial contamination levels in various hospital units, focusing on environmental surfaces, surgical instruments, patient beds, and air quality. Knowledge Gap: Despite existing research on HAIs, limited studies have comprehensively analyzed bacterial contamination on multiple hospital surfaces, particularly in Tikrit Teaching Hospital. Aims: The objective of this study was to identify and quantify bacterial contamination across different hospital units, highlighting potential risks to patients and healthcare workers. Results: A total of 147 samples were collected, with 60.4% testing positive for bacterial growth. The most prevalent bacterial species included E. coli (32.9%) and S. aureus (22.4%), while Leuconostoc pseudomesenteroides was the least frequent isolate (1.2%). Hospital floors were found to be the most contaminated (51.8%), while surgical instruments exhibited the least contamination (1.2%). Novelty: This study provides a detailed assessment of bacterial contamination across various hospital surfaces, offering insight into the distribution and prevalence of pathogenic bacteria in Tikrit Teaching Hospital. Implications: The findings underscore the necessity for improved infection control measures, including enhanced disinfection protocols and routine microbial monitoring, to mitigate the risks of HAIs and improve hospital hygiene standards.

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