Investigating the changing taxonomy and antimicrobial resistance of bacteria isolated from door handles in a new infectious disease ward pre- and post-patient admittance

Healthcare-associated infections (HAIs) are a significant health concern, with antimicrobial resistance (AMR) exacerbated by the hospital environment. A study on 40 door handles at a newly built hospital found that Staphylococcus spp. were present in 43% of sites before patient admission, increasing to 55% and 65% at six and 12 months, respectively. Bacillus spp. showed a significant increase, while MDR remained high. The study highlights the prevalence of a resistant reservoir on high-touch surfaces and the long-term persistence of Staphylococcus spp.