Death toll in European food outbreak rises to 17

BERLIN — The number of people hit by a massive European outbreak of food-borne bacterial infections is one third higher than previously known and a stunningly high number of patients suffer from a potentially deadly complication that can shut down their kidneys, officials said Wednesday.

The death toll rose to 17, with German authorities reporting that an 84-year-old woman with the complication had died on Sunday.

Medical authorities appeared no closer to discovering either the source of the infection or the mystery at the heart of the outbreak: why the unusual strain of the E. coli bacteria appears to be causing so many cases of hemolytic uremic syndrome, which attacks the kidneys and can cause seizures, strokes and comas.

Germany's national health agency said 1,534 people in the country had been infected by EHEC, a particularly deadly strain of the common bacteria found in the digestive systems of cows, humans and other mammals. The Robert Koch Institute had reported 1,169 a day earlier.

The outbreak has hit at least nine European countries but virtually all of the sick people either live in Germany or recently traveled there.

The Robert Koch Institute said 470 people in Germany were suffering from hemolytic uremic syndrome, or HUS, a number that independent experts called unprecedented in modern medical history. HUS normally occurs in 10 percent of EHEC infections, meaning the number seen in Germany could be expected in an outbreak three times the size being currently reported.

That discrepancy could indicate that a vast number of cases haven't been reported because their symptoms are relatively mild, medical experts said.

But they also offered another, more disturbing theory — the strain of EHEC causing the outbreak in Europe could be more dangerous than any previously seen.

German Agriculture Minister Ilse Aigner said scientists were working nonstop to find the source of the germ that is believed to have been spread in Europe on tainted vegetables — and where in the long journey from farm to grocery store the contamination occurred.

German authorities initially pointed to cucumbers from Spain after people in Hamburg fell ill. But further tests showed that those vegetables, while contaminated, did not cause the outbreak.

Death toll in European food outbreak rises to 17 06/01/11 [Last modified: Wednesday, June 1, 2011 10:57pm]

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