Epi Curves

Multistate Outbreak of Listeriosis Linked to Imported Frescolina Marte Brand Ricotta Salata Cheese (Final Update)

Posted November 21, 2012 2:30 PM ET

This investigation is closed.Listeria monocytogenes infection (listeriosis) is an important cause of illness in the United States. More information about listeriosis, and steps people can take to reduce their risk of infection, can be found on the CDC Listeria Web Page.

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.

Persons infected with the outbreak-associated strain of Listeria monocytogenes, by date of clinical specimen collection*

Persons infected with the outbreak-associated strain of Listeria monocytogenes, by date of clinical specimen collection

*n=22 for whom information was reported as of November 14, 2012

Previous Epi Curves