1. Chiapponi, C., Pavoni, E., Bertasi, B., Baioni, L., Scaltriti, E., Chiesa, E., et al. (2014). Isolation and genomic sequence of Hepatitis A virus from mixed frozen berries in Italy. Food and Environmental Virology,. doi: 10.1007/s12560-014-9149.1 .
2. Carvalho C., Thomas, H. L., Balogun, K., Tedder, R., Pebody, R., Ramsay, M., Ngui, S. L. (2012). A possible outbreak of hepatitis A associated with semi-dried tomatoes, England, July–November 2011. Euro Surveillance, 17(6), 20083.
3. ECDC—European Centre for Disease Prevention and Control. (2014). Outbreak of hepatitis A in EU/EEA countries—Second update, 11 April 2014. Stockholm: ECDC; Retrieved June 25, 2014 from http://www.ecdc.europa.eu/en/publications/Publications/ROA-Hepatitis%20A%20virus-Italy%20Ireland%20Netherlands%20Norway%20France%20Germany%20Sweden%20United%20Kingdom%20-%20final.pdf .
4. Fournet, N., Baas, D., van Pelt, W., Swaan, C., Ober, H. J., Isken, L. et al. (2012). Another possible food-borne outbreak of hepatitis A in the Netherlands indicated by two closely related molecular sequences, July to October 2011. Euro Surveillance, 17(6), 20079.
5. Guzman-Herrador, B., Jensvoll, L., Einöder-Moreno, M., Lange, H., Myking, S., Nygård, K. et al. (2014). Ongoing hepatitis A outbreak in Europe 2013 to 2014: imported berry mix cake suspected to be the source of infection in Norway. Euro Surveillance, 19(15), 20775.