|Epidemiological Alert: Haemolytic Uraemic Syndrome (HUS) and infection by Enterohaemorrhagic E. coli (EHEC) (Published on 8 June 2011)|
New Case Definition
Starting 8 June 2011, European Union (EU) Members States are reporting case according to a new case-definition.
Possible Epidemic Case: Any person who developed in or after 1 May 2011;
Probable Epidemic Case Any possible epidemic case of STEC diarrhea or STEC HUS AND during the exposure period of 14 days before the onset of illness, meeting at least one of the following epidemiological criteria:
Confirmed Epidemic Case Any person meeting the criteria for a possible case, AND Isolation of a STEC strain of serotype O104:H4
OR isolation of a STEC strain of serotype O104 AND fulfilling epidemiological criteria for a probable case. EU Members States are reporting number of probable and confirmed cases and deaths.
Regional Office for the Americas of the World Health Organization