Autochthonous and imported Trichinella isolates in Germany

Area of Science:

• Veterinary parasitology
• Food safety science
• Wildlife epidemiology

Background:

• Trichinella species are globally distributed parasites.
• Wildlife reservoirs play a crucial role in the epidemiology of trichinellosis.
• Imported food products and captive wild animals can introduce parasites to new regions.

Purpose of the Study:

• To identify Trichinella species in wildlife and imported meat products in Germany.
• To assess the risk of parasite introduction through international trade and zoo animal movements.

Main Methods:

• Parasitological examination of Trichinella isolates from wild boars and foxes.
• Detection of Trichinella in imported meat products and zoo animal carcasses.

Main Results:

• Trichinella spiralis and Trichinella britovi were identified in German wildlife (wild boars, foxes).
• Trichinella spiralis was found in Spanish meat products and Alaskan grizzly bear meat.
• Trichinella nativa was detected in a polar bear from the Berlin Zoo.

Conclusions:

• Wildlife and imported food products pose a risk for Trichinella transmission in Germany.
• Carnivores from Arctic regions in zoos can introduce freeze-resistant Trichinella species if not properly managed.
• Regular examination of live animals and imported meats is essential for controlling trichinellosis.