Estes, Mary K., Robert L. Atmar, Frederick H. Neill, Gyorgy Szucs and Theodore G. MetcalfJensen, Richard W. Russell W. Kiesling, and Frank S. ShipleyProceedings: The Second State of the Bay Symposium. February 4 - 6, 19932010-02-152010-02-151993http://hdl.handle.net/1969.3/24128pgs. 169-172Public 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.Norwalk virusHepatitis 'A'shellfishpublic healthhuman consumptionpathogensChapter