Safety Alerts Saves Lives
Safety Alerts  
Home Privacy About Us Contact Us Change Preferences
" "
MMWR Weekly Report

January 29, 1999

" "
Farzad Mostashari, M.D., M.S.P.H.
CDC, Epidemic Intelligence Service
(212) 788-4197 (New York)

Outbreak of Vibrio Parahaemolyticus Infection Associated with Eating Raw Oysters and Clams Harvested from Long Island Sound—Connecticut, New Jersey, New York, 1998

To reduce the risk of Vibrio parahaemolyticus infection, and other shellfish-associated infections, avoid eating raw or undercooked shellfish, especially during warmer months.

In the summer of 1998, 23 mid-Atlantic residents were infected with Vibrio parahaemolyticus. The outbreak investigation determined that 22 of 23 ill persons had eaten or handled oysters, crabs, or crustaceans. Traceback investigations by local and state health departments identified the site of harvest for 11 of the 16 patients who had eaten either oysters or clams. Oysters and clams eaten by 8 patients were harvested from Oyster Bay, off New York's Long Island Sound, during August 4-August 27. To reduce the risk of V. parahaemolyticus infection and other shellfish-associated infections, avoid eating raw or undercooked shellfish. If consumers of oysters develop gastroenteritis within 4 days after ingestion, they should consult a health-care provider and ask that their stool be cultured for Vibrio. For persons with underlying medical illness, such as alcoholism; diabetes; or persons with liver disease, iron overload states, compromised immune systems, or gastrointestinal problems, Vibrio infection can cause serious illness.


The information contained herein has been obtained from sources that the Company believes to be reliable, however, the Company has not independently verified or confirmed the information and the recipient acknowledges that no representations or warranties are being made in connection with the use of the information.