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Epi Curves

Multistate Outbreak of Listeriosis Linked to Crave Brothers Farmstead Cheeses (Final Update)

Posted September 24, 2013 1:00 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 as of September 24, 2013

*n=6 for whom information was reported as of September 24, 2013

Previous Epi Curve - August 22, 2013

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

*n=6 for whom information was reported as of August 22, 2013  Clinical specimens that were collected after August 10, 2013 might not be reported yet due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.

*n=6 for whom information was reported as of August 22, 2013

Clinical specimens that were collected after August 10, 2013 might not be reported yet due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.

Previous Epi Curve - July 3, 2013

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=5 for whom information was reported as of July 3, 2013

Clinical specimens that were collected after June 22, 2013 might not be reported yet due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of two to three weeks.

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