Timeline of Reported Cases
Final Update
Published June 21, 2019 at 3:00 PM ET
This outbreak appears to be over. Consumers, restaurants, and retailers should always handle and cook oysters properly. Get CDC’s tips for preventing foodborne illness from oysters and other shellfish.
People infected with the outbreak strains, by date of illness onset*
*n=15 for whom information was reported as of 6/21/19. Some illness onset dates have been estimated from other reported information.
Previous Timelines
People infected with the outbreak strains, by date of illness onset*
*n=15 for whom information was reported as of 5/22/19. Some illness onset dates have been estimated from other reported information.
Illnesses that started after 4/17/19 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This can take 4 or more weeks.
People infected with the outbreak strains, by date of illness onset*
*n=15 for whom information was reported as of 5/10/19. Some illness onset dates have been estimated from other reported information.
Illnesses that started after 4/4/19 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This can take 4 or more weeks.