Frozen berries should be boiled

This is why we boil berries at home.

Hepatitis A virus is an important cause of food-borne diseases and has been associated with several European outbreaks linked to berries [14]. Here, we describe an ongoing outbreak of hepatitis A virus (HAV) in Sweden and Austria and the confirmation of frozen strawberries imported from Poland as the source of infection. The aims are to highlight the importance of sequencing in outbreak investigations and, due to the long shelf-life of the food vehicle, to increase awareness and warnings towards HAV infections related to frozen strawberries in Europe.

Hepatitis A outbreak linked to imported frozen strawberries by sequencing, Sweden and Austria, June to September 2018

Theresa Enkirch, Ronnie Eriksson, Sofia Persson, Daniela Schmid, Stephan W. Aberle, et al

https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2018.23.41.1800528#html_fulltext</a