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Multistate Outbreak of Human Salmonella Typhimurium Infections Linked to Live Poultry in Backyard Flocks (Final Update)

Posted November 1, 2013 1:30 PM ET

This outbreak appears to be over. However, live poultry, including those kept in backyard flocks, are an important cause of human Salmonella infections in the United States. More information about Salmonella from live poultry and the steps people can take to reduce their risk of infection is available.

Current Epi Curve

This outbreak can be visually described with a chart showing the number of persons who became ill each day. This chart is called an epi curve. Please see the Timeline for Reporting of Salmonella Cases for more details on the reporting process.

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of October 28, 2013

*n=348 for whom information was reported as of October 28, 2013

« Read the full Outbreak Investigation

Previous Epi Curves

August 19, 2013

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of August 15, 2013

*n=316 for whom information was reported as of August 15, 2013

Illnesses that occurred after July 22, 2013 might not yet be reported 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.

August 9, 2013

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of August 6, 2013

*n=307 for whom information was reported as of August 6, 2013

Illnesses that occurred after July 13, 2013 might not yet be reported 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.

June 28, 2013

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of June 28, 2013

*n=258 for whom information was reported as of June 28, 2013

Illnesses that occurred after June 4, 2013 might not yet be reported 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.

June 6, 2013

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of June 4, 2013

*n=219 for whom information was reported as of June 4, 2013

Illnesses that occurred after May 12, 2013 might not yet be reported 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.

May 10, 2013

Persons infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Persons infected with the outbreak strains of Salmonella Typhimurium, by date of illness onset as of May 7, 2013

*n=146 for whom information was reported as of May 7, 2013

Illnesses that occurred after April 14, 2013 might not yet be reported 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.

 
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