Things Every Pregnant Woman Should Know

The greatest danger comes from eating raw or undercooked mollusks, such as clams, oysters, mussels, snails, squid and octopus. Harmful viruses, such as hepatitis A and Norwalk virus, are linked to seafood harvested from contaminated waters. Bacteria, like vibrios, occur in shellfish and toxins, like histamine, occur in mainly in fresh tuna, mahi mahi, mackerel and bluefish. Store fresh shellfish in the refrigerator in ventilated containers, uses as quickly as possible and cooked thoroughly until the shells open. If the shell of any clam, oyster or mussel does not open after cooking, it is dead and must be discarded.