Earliest EHEC source remains unknown
In mid February a 6 year old girl died due to a EHEC infection. After that 4 more people (2 children aged 11 and 3 and 2 women aged 68 and 88) in Hamburg fell ill after being infected with the intestinal bacteria. Since then there have been no new cases reported in Hamburg. The child that died had EHEC serotype O157. During the big EHEC outbreak that killed 53 people in Germany it was the EHEC type O104.
Source: EVMI