The biofilm challenge for cleaning, disinfection, and sterilisation

Posted

12th July 2019

Blog

In the AJIC special issue on ‘Disinfection, sterilization, and antisepsis’, there is a helpful State-of-the-Science mini-review on the importance of biofilms in medical device reprocessing and healthcare surface disinfection. The review covers the growing appreciation that biofilms present a tough challenging to cleaning, disinfection, and sterilisation attempts for both medical devices and surfaces in healthcare settings.

The review draws a helpful distinction between ‘traditional’ biofilms, that form on the aqueous-hard surface interfaces (e.g. teeth and ships hulls), and dry surface biofilm that you commonly find on a hospital surfaces. This dry surface biofilm is described as ‘Build-up Biofilm’, due to the formation under repeated rounds of hydration, rather than continuous hydration as with a traditional biofilm.

The review then covers the evidence that biofilms are a common issue both for medical devices and environmental surfaces. In both cases, biofilms are frequently identified, microbes in biofilms can persist standard cleaning / disinfection / sterilisation, and have been linked to clinical issues (e.g. outbreaks). For example, in the context of medical devices, outbreaks have been linked to biofilms on flexible endoscopes. And in the context of environmental surfaces, an in vitro model demonstrated that bacteria can be transmitted from dry surface biofilms to gloved hands, illustrating a potential role in transmission.

Whilst the role of biofilms in the transmission of pathogens on medical devices and healthcare surfaces, current and future cleaning, disinfection, and sterilisation methods must be implemented and developed with biofilms in mind.

BioFilm v1-01

Share this article

Tags

Latest News

Blog
evaluclean.jpg

The role of the environmental hygiene nurse in preventing HC…

An interesting article published recently in Infection Prevention in P…

Products
31.07.2019_Disinfectant_wipes_reduce_HCAIs_Gama_1366x400px.jpg

Clinell efficacy against Wuhan coronavirus (WN-CoV)

Universal and Sporicidal are effective against coronavirus in 60 secon…

Products
2019_Celebrating-world-hand-hygiene-day_Gama_1366x400px.jpg

Clinell Antimicrobial Hand Wipes efficacy against Wuhan nove…

Clinell Antimicrobial Hand Wipes are effective against coronavirus in …

Events and exhibitions
Blog_exhibitions_events_1366x400px.png

We are exhibiting at Arab Health 2020

We’re excited to exhibit at Arab Health - the largest medical exhibiti…