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The material of the handle itself contributes to the growth of bacteria, with most door handles being constructed of stainless steel – a suitable home for bacteria. The material can affect the time bacteria can survive on door handles, but more important is the temperature and humidity of the environment.
Antimicrobial copper-alloy touch surfaces can prevent frequently touched surfaces from serving as reservoirs for the spread of pathogenic microbes. This is especially true in healthcare facilities, where harmful viruses, bacteria, and fungi colonize and persist on doorknobs, push plates, handrails, tray tables, tap (faucet) handles, IV poles, HVAC systems, and other equipment. [1]
This effect is attributed to the antibacterial behavior of metal ions, which are absorbed by bacteria upon contact and damage their cell membranes. [1] In modern times, the effect was observed by Carl Nägeli, although he did not identify the cause. [2] Brass doorknobs, brass handrails, and silverware all exhibit this effect to an extent.
Two of the bacteria species most likely to infect patients are the Gram-positive strains of methicillin-resistant Staphylococcus aureus, and Gram-negative Acinetobacter baumannii. While antibiotic drugs to treat diseases caused by methicillin-resistant Staphylococcus aureus are available, few effective drugs are available for Acinetobacter .
Wastewater-based epidemiology has been used to estimate illicit drug use in communities or populations, but can be used to measure the consumption of alcohol, caffeine, various pharmaceuticals and other compounds. [2] Wastewater-based epidemiology has also been adapted to measure the load of pathogens such as SARS-CoV-2 in a community. [3]
The thought of touching a door handle in a public restroom is cringe-inducing. It takes just one person who doesn't wash his or her hands to leave some germs hanging around to get passed on and ...
In addition to objects in hospital settings, other common fomites for humans are cups, spoons, pencils, bath faucet handles, toilet flush levers, door knobs, light switches, handrails, elevator buttons, television remote controls, pens, touch screens, common-use phones, keyboards and computer mice, coffeepot handles, countertops, drinking fountains, and any other items that may be frequently ...
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