Russians infected with tapeworms after eating dried fish from a beer store 19 victims bought a snack from the Pivazvod chain in Pugachev, Saratov. The causes of the parasitic disease opisthorchiasis were found in what the sick people ate. 35 kilograms of products were removed from sale, and the sale of the rest of the fish was also stopped. Opisthorchiasis is caused by flatworms, which can be transmitted through poorly processed fish. Main symptoms: fever, nausea, rash, muscle and joint pain.