Abstract

An outbreak of trichinellosis due to the consumption of sausage made from wild boar meat unexamined for the presence of Trichinella spp. was reported in Poland in December 2020. The outbreak affected eight people. Examination of the sausages made of wild boar meat collected during epidemiological investigation indicated a high level of Trichinella spp. Larvae per gram (>30 lpg) and therefore the threat of an infection in humans after consumption of such product was significant. Over the years, the main source of trichinellosis in Poland has been wild boar meat, and the majority of trichinellosis cases were related to the consumption of traditional raw meat products such as Polish sausage. Taking this into account, there is the need for better education of consumers in the Trichinella spp. endemic regions and among cultures consuming traditional raw meat products.

Highlights

  • Each year, several cases of trichinellosis are reported in Poland [1,2,3,4,5]

  • Diagnosis of this disease is made in patients presenting signs and symptoms typical for trichinellosis, positive laboratory test for Trichinella spp., and consumption history of potentially infective food with special attention to meat products eaten raw or undercooked

  • Trichinellosis was confirmed in eight patients who were family and friends of the hunter who had provided them with the homemade raw Polish sausage

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Summary

Introduction

Several cases of trichinellosis are reported in Poland [1,2,3,4,5] Diagnosis of this disease is made in patients presenting signs and symptoms typical for trichinellosis, positive laboratory test for Trichinella spp., and consumption history of potentially infective food with special attention to meat products eaten raw or undercooked. First signs of the disease may occur 1–3 days after consumption of infected meat (enteral phase) [7] They are usually mild and manifest by abdominal pain, diarrhea, vomiting, and sometimes, fever. After one or two weeks, the typical signs for Trichinella spp. infection appear and can include fever, headache, myalgia, fatigue, and face edema They can last for a few weeks (parenteral phase) and in some cases may be prolonged. In a later phase of infection, the treatment must be prolongated

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