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Clostridium difficile - Hospital dog detects CD bacteria

Gert van der Hoek

In Memoriam - Editor, Senior Moderator
Netherlands, Amsterdam

Dog detects CD bacteria

Cliff is helping the VU medical center in the fight against the bacterium Clostridium difficile, which can cause
severe diarrhea . The bacterium is contagious and patients must also be isolated immediately.
It is therefore very important that the bacteria is recognized quickly.
The two year old beagle Cliff will take on this important task.

The idea of training a trackingdog comes from Yvo Smolders, professor of internal medicine.
"we were wondering whether a patient had Clostridium and a nurse noted that she could smell it" .
''If people can smell it, then dogs can do that much better", the doctor thought.

Sniff
Cliff has been a few times on the internal medicine department of the VUmc sniffing patients. Hitherto
he knew to detect 90 percent of infected patients . In two cases, he hit on while
the laboratory test was negative. But who knows,''the dog could be right, because the laboratory test is not
100 percent reliable,'' said Marije Bomers the internist who has trained with Cliff.

The intention is that Cliff is not only working in the VUmc. Other care institutions
may eventually use Cliffs services. "Cliff is faster than a laboratory," says
Bomers internist. "The laboratory test does not last long, but in practice it often takes one day
untill you know it. If the result is questionable, then you need another three days in the breeding
stove before you know whether someone is infected. Cliff detects the bacterium in one sniff. "

machinetranslated from NOS.nl
 
Re: Clostridium difficile - Hospital dog detects CD bacteria

Tuesday, November 9, 2010

Sniffing out killer bugs

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Cliff the beagle detects 'Clostridium difficile' as he 'does his rounds' of the wards in a leading Dutch hospital, writes ISABEL CONWAY .

WHEN “DR CLIFF” first appeared on the wards of a leading Dutch teaching hospital, some patients assumed they were experiencing strange side effects from their drugs or were seeing things.

But “Dr Cliff” happens to be a two-year-old bacteria-busting beagle, trained at Amsterdam Free University Medical Centre to detect the virulent and highly contagious bacteria, Clostridium difficile , which besets hospitals, closes wards and has been known to kill.

Read more : Irish Times
 
Re: Clostridium difficile - Hospital dog detects CD bacteria

Dogs can accurately sniff out ?superbug? infections

Thursday, December 13, 2012

Dogs can sniff out Clostridium difficile (the infective agent that is responsible for many of the dreaded "hospital acquired infections") in stool samples and even in the air surrounding patients in hospital with a very high degree of accuracy, finds a study in the Christmas issue published on bmj.com today.

The findings support previous studies of dogs detecting various types of cancer and could have great potential for screening hospital wards to help prevent C. difficile outbreaks, say the researchers.


After two months of training, the dog?s detection abilities were formally tested on 50 C. difficile positive and 50 C. difficile negative stool samples. He correctly identified all 50 positive samples and 47 out of 50 negative samples.

This equates to 100% sensitivity and 94% specificity (sensitivity measures the proportion of positives correctly identified, while specificity measures the proportion of negatives correctly identified).

The dog was then taken onto two hospital wards to test his detection abilities in patients. He correctly identified 25 out of 30 cases (sensitivity 83%) and 265 out of 270 negative controls (specificity 98%).

BMJ
 
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