(added on 2011/06/27)
EHEC outbreak in Europe 歐洲出血性大腸桿菌爆發
An enterohaemorrhagic Escherichia coli (EHEC) outbreak occurred in Germany in May and June 2011. Thirteen other European countries have together reported a few dozen cases. Almost all infected persons outside Germany had travelled to or lived in Germany during the incubation period.
The map shows the 2011 EHEC outbreak situation, against the background of the number of European visitors in Germany in 2009. Between onset of the outbreak through 15 June, there were 786 haemolytic uraemic syndrome (HUS) cases and 2517 EHEC infection cases in Germany. Cumulative incidence of HUS and EHEC infection was higher in federal states in northern Germany such as Hamburg, Schleswig-Holstein, Bremen and Mecklenburg-Vorpommern (inset). The bar charts in the main map show the distribution of cases in countries adjacent to Germany including Netherlands, Switzerland, Denmark and Sweden. Of these, many were also the top sources of visitors to Germany, as depicted by graduated colours in the map. The preference for south-western federal states of Germany by foreign visitors is also shown. The discrepancy between regions heavily affected by the EHEC within Germany and major destinations for visitors may explain the relatively localized pattern in the outbreak.
Data for the map were obtained from Federal Statistical Office of Germany, World Health Organization Regional Office for Europe and Robert Koch Institute.