The European Food Safety Authority (EFSA) and the European Centre for Disease Prevention and Control (ECDC) have released an Outbreak Assessment report on an outbreak of Hepatitis A infection affecting people in four Nordic countries.
The outbreak affected at least 16 people in Denmark, Finland, Norway and Sweden between 1 October 2012 and 9 April 2013, none of whom reported a history of travel outside the EU. The EFSA/ECDC report concludes that the most likely route of transmission was foodborne from a persistent common source within the EU. The epidemiological evidence suggests that frozen berries are the most likely vehicle of infection, but not necessarily the only one.
Further investigation is now under way to determine the source of the outbreak and the information available suggests that further cases will be reported. The report can be found here.