Fish products in Slovakia have been heavily infected with Anisakis spp. larvae, which causes human anisakiasis. We found larvae in all tested samples of frozen Atlantic herring. Anisakid allergen t-Ani s7 testing revealed 2 positive cases in humans, signaling need for health authorities to closely monitor zoonotic marine parasites, even in inland areas.
Keywords: Anisakis; Atlantic herring; Slovakia; anisakiasis; fish products; food safety; marine nematodes; parasites; zoonoses.