Study Finds Parasite Eggs in Strawberries, Sparks Debate Among Estonian Scientists
A study by the University of Tartu found that 17% of tested strawberry samples contained tapeworm eggs, but scientists from the Estonian University of Life Sciences caution against drawing broad conclusions due to the small sample size. Health Board data show no more than four cases of alveococcosis per year in Estonia.

Researchers at the University of Tartu analyzed 30 strawberry samples from seven markets across Estonia as part of a European study on parasites in garden produce. The analysis, conducted in France, revealed that nearly 17% of the samples (roughly one in six) contained eggs of Echinococcus multilocularis, a tapeworm. This placed Estonia first in Europe for contamination.
Professor Urmas Saarma from the University of Tartu's Department of Theriology attributed the high contamination rate to the widespread presence of the parasite in foxes and other animals. He noted that a decade ago, about a third of foxes were found infected, and since foxes are common nationwide, the issue is national in scope.
However, scientists from the Estonian University of Life Sciences urged caution. Professor Arvo Viltrop argued that the sample size was too small to draw broad conclusions, and the role of chance was significant. He explained that the detected DNA traces could be fragments of eggs, not necessarily viable parasites. He pointed out that in the same study, some countries found parasites in lettuce but not in strawberries, highlighting randomness.
The Estonian Gardener's Union expressed concern that the anonymous samples could unfairly stigmatize producers. Executive director Raimond Strattin stated that food safety controls are conducted differently: specific enterprises are tested, and only those with contaminated products face penalties.
Researchers called for a larger study to assess the prevalence of parasites in both wild animals and garden produce. According to the Health Board, Estonia records no more than four cases of alveococcosis annually.


