Featured Research

from universities, journals, and other organizations

Hospital water taps contaminated with bacteria

Date:
January 21, 2014
Source:
Society for Healthcare Epidemiology of America
Summary:
New research finds significantly higher levels of infectious pathogens in water from faucet taps with aerators compared to water from deeper in the plumbing system. Contaminated water poses an increased risk for infection in immunocompromised patients.

New research finds significantly higher levels of infectious pathogens in water from faucet taps with aerators compared to water from deeper in the plumbing system. Contaminated water poses an increased risk for infection in immunocompromised patients. The study was published in the February issue of Infection Control and Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America.

"Aerators are a reservoir for drug-resistant bacteria and a source of infection for patients at risk," said Maria Luisa Cristina, PhD, a lead author of the study. "Safe water is vital to ensuring patient safety where waterborne infections increase morbidity, mortality, treatment costs, compensation claims and prolong hospital stays."

Researchers from the University of Genova in Italy and collaborating universities studied cold and hot water samples at two tertiary care hospitals for a year from faucets used by healthcare professionals for handwashing, surgical washing, and washing of medical equipment.

This study assessed growth of bacteria at both the faucet and deeper within the water distribution system. Cold and hot water sampling was carried out first with the aerators in faucets in place to assess the risk at each outlet point and then after disinfecting and flame-sterilizing the outlet point and letting the water run for two minutes to analyze the microbiological features of the plumbing system.

Researchers found the total microbial load was up to 10 times greater when aerators were in place than after they had been sterilized. Their findings show that opportunist micro-organisms like Legionella spp., Acinetobacter spp. and other Gram-negative bacteria were significantly higher at the faucet than in the plumbing system. Throughout the study, researchers consistently noted chlorine levels that were too low and hot water temperatures that were below the minimal temperature needed to prevent the growth of Legionella. Both of these factors promote the growth of waterborne pathogens.

In a commentary published alongside the study, Tara Palmore, MD, notes the need for additional research on the topic: "Hospitals tend to have large, complex waterworks with low-flow areas that produce stagnation and biofilm formation; hot and cold water temperatures that are not well regulated may be ideal for bacterial growth...the work of Cristina et al. is valuable in quantifying the frequency, magnitude, and location of the potential hazard to patients from hospital water in their facilities. There is still a significant gap in our understanding of how and when such risk translates to patient infections."


Story Source:

The above story is based on materials provided by Society for Healthcare Epidemiology of America. Note: Materials may be edited for content and length.


Journal Reference:

  1. Maria Luisa Cristina, Anna Maria Spagnolo, Beatrice Casini, Angelo Baggiani, Pietro Del Giudice, Silvio Brusaferro, Poscia Andrea, Moscato Umberto, Fernanda Perdelli, Paolo Orlando. The Impact of Aerator on Water Contamination by Emerging Gram-Negative Opportunists in At-Risk Hospital Departments. Infection Control and Hospital Epidemiology, February 2014

Cite This Page:

Society for Healthcare Epidemiology of America. "Hospital water taps contaminated with bacteria." ScienceDaily. ScienceDaily, 21 January 2014. <www.sciencedaily.com/releases/2014/01/140121113444.htm>.
Society for Healthcare Epidemiology of America. (2014, January 21). Hospital water taps contaminated with bacteria. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2014/01/140121113444.htm
Society for Healthcare Epidemiology of America. "Hospital water taps contaminated with bacteria." ScienceDaily. www.sciencedaily.com/releases/2014/01/140121113444.htm (accessed October 20, 2014).

Share This



More Health & Medicine News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Microneedle Patch Promises Painless Pricks

Microneedle Patch Promises Painless Pricks

Reuters - Innovations Video Online (Oct. 18, 2014) Researchers at The National University of Singapore have invented a new microneedle patch that could offer a faster and less painful delivery of drugs such as insulin and painkillers. Video provided by Reuters
Powered by NewsLook.com
Raw: Nurse Nina Pham Arrives in Maryland

Raw: Nurse Nina Pham Arrives in Maryland

AP (Oct. 17, 2014) The first nurse to be diagnosed with Ebola at a Dallas hospital walked down the stairs of an executive jet into an ambulance at an airport in Frederick, Maryland, on Thursday. Pham will be treated at the National Institutes of Health. (Oct. 16) Video provided by AP
Powered by NewsLook.com
Raw: Cruise Ship Returns to US Over Ebola Fears

Raw: Cruise Ship Returns to US Over Ebola Fears

AP (Oct. 17, 2014) A Caribbean cruise ship carrying a Dallas health care worker who is being monitored for signs of the Ebola virus is heading back to Texas, US, after being refused permission to dock in Cozumel, Mexico. (Oct. 17) Video provided by AP
Powered by NewsLook.com
Spanish Govt: Four Suspected Ebola Cases in Spain Test Negative

Spanish Govt: Four Suspected Ebola Cases in Spain Test Negative

AFP (Oct. 17, 2014) All four suspected Ebola cases admitted to hospitals in Spain on Thursday have tested negative for the deadly virus in a first round of tests, the government said Friday. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins