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Thursday, June 9, 2011

WHO : EHEC outbreak - Update 12

From World Health Organization, Europe office :

"Haemolytic uraemic syndrome (HUS)

As of 8 June at 15:00 CET, Germany had reported 722 HUS cases (including 18 fatalities): 33 more cases (but with no additional deaths) since the previous day. 69% of cases were in females and 88% in adults aged 20 years or older, with the highest attack rates per 100 000 population in the group aged 20–49 years. Case-onset dates ranged from 1 May to 6 June.

Enterohemorrhagic Escherichia coli (EHEC)

As of 8 June at 15:00 CET, 2086 cases of EHEC infection (without HUS) had been reported in Germany (8 fatal): 127 more cases and 2 more deaths since the previous day. 60% of cases were in females and 88% in adults aged 20 years or older. Case-onset dates ranged from 1 May to 6 June.

The Robert Koch Institute, in Germany, states that the current HUS and EHEC notification data, as well as data from the surveillance of bloody diarrhoea in emergency departments, show an overall decreasing trend in the number of cases. It is uncertain whether this decline is due to the changing consumption of raw vegetables and/or the waning of the source of infection.

Other countries

As of 8 June, 13 other European countries had reported a total of 35 HUS cases (1 fatal) and 61 EHEC cases (none fatal). There were 2 more HUS cases and 3 fewer EHEC cases reported since the previous day. As the revised European Union (EU) case definition is being applied, some cases reported earlier have now been excluded. In addition, the Centers for Disease Control and Prevention (CDC) in Atlanta, United States of America have published information on 3 HUS cases (1 confirmed and 2 suspected) and 1 suspected EHEC case (without HUS) in the United States linked to this outbreak. On 7 June, the Public Health Agency of Canada reported on 1 suspected case of E. coli O104 infection (without HUS), in a person with travel history to northern Germany and with links to a confirmed case of E. coli O104 infection in Germany."

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