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There are at least 35 people sickened in Denmark, and another 36 sickened between Finland, Norway and Sweden. Swedish authorities say the country is experiencing ten times the normal number of Hepatitis A cases so far this year.
Most case patients reported consuming berries or smoothies around the time of exposure, but investigators have not identified a specific brand or berry origin.
This is the first foodborne Hepatitis A outbreak of nordic origin, Eurosurveillance said.
Due to Hepatitis A’s incubation range of 15 to 50 days, and the delay involved in reporting the disease, authorities expect more illnesses to surface in the coming weeks.