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Epi Curves

Multistate Outbreak of Listeriosis Linked to Blue Bell Creameries Products (Final Update)

Posted June 10, 2015 10:30 AM ET

This outbreak investigation is over. However, people could continue to get sick because recalled products may still be in people’s freezers and consumers unaware of the recalls could eat them. Institutions should not serve and retailers should not sell recalled products. Read the Advice to Consumers, Institutions, and Retailers.

Final Epi Curve

This outbreak can be visually described with a chart showing the number of people who were diagnosed each month. This chart is called an epi curve.

People infected with the outbreak strains of Listeria monocytogenes, by month of illness onset*

Epi Curve, June 10, 2015

* n=10 for whom information was reported as of June 9, 2015

Previous Epi Curves

April 21, 2015

People infected with the outbreak strains of Listeria monocytogenes, by month of illness onset*

Epi Curve, April 21, 2015

* n=10 for whom information was reported as of April 21, 2015

April 8, 2015

People infected with the outbreak strains of Listeria monocytogenes, by month of illness onset*

Epi Curve, April 8, 2015

* n=8 for whom information was reported as of April 8, 2015

  • Cluster 1 includes five patients reported from Kansas
  • Cluster 2 includes three patients reported from Texas

March 13, 2015

Persons infected with the outbreak strains of Listeria monocytogenes, by month of illness onset.

Epi case count, click for more details.

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