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An outbreak of the ''Escherichia coli'' O157 bacterium occurred in South Wales in 2005. It was the largest outbreak of ''E. coli'' O157 in Wales and the second largest in the UK.〔 157 cases were identified in the outbreak; 31 people were hospitalized, and one child, 5-year old Mason Jones, died. Most of the 157 cases identified were children, attending 44 different schools across four different local authorities – Bridgend, Methry Tydfil, Caerphily and Rhondda Cynon Taf. Of those infected, 109 cases were identified as a strain of ''E. coli'' O157 unique to this outbreak.〔Pennington, Hugh: ''Public Inquiry into the September 2005 Outbreak of E.coli O157 in South Wales'', March 2009.〕 The first cases were identified on 16 September 2005, after 5 children had been admitted to a hospital in Methry Tydfil. The earliest sign of illness had been 10 September. Most cases had originated before the end of September, though the last case of the outbreak was identified on 8 November 2005. For many of those affected, the illness progressed with a typical process of vomiting and bloody diarrhoea, sometimes leading to renal failure. Afterwards, some of those affected spoke of long-lasting physical and psychological effects.〔Pennington, Hugh: ''Public Inquiry into the September 2005 Outbreak of E. coli O157 in South Wales'', March 2009.〕 The cause was a vacuum packing machine used to package both raw meat and cooked meat without being properly cleaned between batches resulting in cross-contamination. == Mason Jones == The most tragic consequence of the E.coli was the death of 5-year old Mason Jones from Deri, Caerphilly. He had attended his local primary school and contracted the disease via a meal served at the school. Mason was sent home from school on Wednesday 21 September feeling ill, shortly after his elder brother had recovered from the same illness. His condition gradually worsened over the next few days. The out-of-hours health service didn’t react immediately to Mason’s worsening condition, but he was admitted to hospital on Sunday 25 September, where he was diagnosed with renal failure and transferred to a specialist unit in Bristol on Monday 26 September. Despite intensive care, Mason died on Tuesday 4 October.〔Mills, Sharon: witness statement, 15.6.2006〕 Since his death, Mason’s mother, Sharon Mills, has campaigned to help raise awareness of the dangers of E.coli O157. In an emotional statement to the press, she said "I just want people to know how bad this bacterium is, and how powerless I felt standing by the side of him watching him die from it".〔Mills, Sharon: statement to the press, 20.03.09, BBC and ITN News broadcasts.〕 A memorial garden was established in his honour at his primary school in Deri. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2005 South Wales E. coli O157 outbreak」の詳細全文を読む スポンサード リンク
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