Norwalk and Hepatitis 'A' virus in shellfish
Estes, Mary K., Robert L. Atmar, Frederick H. Neill, Gyorgy Szucs and Theodore G. Metcalf
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Public health concern about the safety of shellfish for human consumption arises periodically as outbreaks of shellfish- transmitted illnesses occur. The majority of non-bacterial, shellfish-associated illnesses are gastroenteritis and hepatitis, caused by Norwalk virus (NV) and hepatitis A virus (HAV), respectively. In recent years, Norwalk and Norwalk- like viruses have been responsible for the greatest incidence of shellfish-associated gastroenteritis in the United States. Such outbreaks of illness contribute to a loss of public confidence in the safety of shellfish and to serious financial losses by the shellfish industry and related seafood businesses.