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Hospital bed sheets still germy despite washing

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(HealthDay News) -- Even after a thorough cleaning, traces of diarrhea-causing bacteria can remain on hospital bed sheets, researchers report.

The new study suggests that linens could transmit Clostridium difficile infections between patients, and even between hospitals, according to the British researchers.

"The findings of this study may explain some sporadic outbreaks of C. difficile infections in hospitals from unknown sources," said Katie Laird, the study's lead author. She heads infectious disease research at De Montfort University School of Pharmacy in Leicester, England.

"However," she added, "further research is required in order to establish the true burden of hospital bed sheets in such outbreaks."

C. difficile is a potentially life-threatening infection. In its mild form, it may cause watery diarrhea. But in some cases it progresses to colon inflammation and kidney failure.

In their tests, the researchers washed C. difficile-contaminated cotton sheeting in a commercial washing machine with industrial detergent at high disinfecting temperatures. They still found traces of the bacteria afterward.

What's more, bacteria from the contaminated sheets were transferred to uncontaminated sheets during washing, the investigators found.

The study was published Oct. 16 in the journal Infection Control & Hospital Epidemiology.

"Future research will assess the parameters required to remove C. difficile spores from textiles during the laundry process," Laird said in a journal news release.

C. difficile infection occurs most often among older adults in hospitals or long-term care facilities who take antibiotics. The germ was tied to almost half-a-million infections in the United States in a single year, and 29,000 people died within 30 days of diagnosis, according to the U.S. Centers for Disease Control and Prevention.

More information

The American Academy of Family Physicians has more on C. difficile infections.

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