ANNAPOLIS, Md. (AP) — Maryland state health officials are expanding a ban on shellfish from South Korea, saying consumers shouldn’t eat any fresh, frozen, and processed products.

The Maryland Department of Health and Mental Hygiene issued the health advisory on Monday. It says it is based on updated information from the U.S. Food and Drug Administration and goes beyond one issued last month that warned only fresh and frozen products.

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The advisory goes back two years for frozen shellfish and three years for canned shellfish. Crabs and shrimp are not part of the advisory.

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The FDA pulled firms that transport Korean shellfish from its list of approved shippers on May 1 because of possible
contamination with norovirus. It says there have been no cases of illness from eating Korean shellfish this year.

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