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Multistate Outbreak of Human Typhoid Fever Infections Associated with Frozen Mamey Fruit Pulp

Posted August 25, 2010

This outbreak appears to be over. However, Salmonella is an important cause of human illness in the United States. More information about Salmonella, and steps people can take to reduce their risk of infection, can be found on the CDC Salmonella Web Page.

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.

Infections with the Outbreak Strain of Salmonella Typhi, by Week of Illness Onset (n=9 for whom information was reported as of 08/20/10)

An epi curve (graph) showing infections with an outbreak strain of Salmonella by date of illness.

The outbreak can be visually described with a chart showing the number of persons who became ill each day. This chart is called an epidemic curve or epi curve. Illnesses that occurred after June 10, 2010, might not yet be reported due to the time it takes between when a person becomes ill, when laboratory testing is completed, when the diagnosis is confirmed, and when the illness is reported. For typhoid fever outbreaks, this takes an average of 8-10 weeks. This delay is denoted by the gray box on the epi curve.

« Read the full Outbreak Investigation

Previous Epi Curve

Epi Curve: August 12, 2010

Infections with the Outbreak Strain of Salmonella Typhi, by Week of Illness Onset (n=9 for whom information was reported as of 08/12/10)

An epi curve (graph) showing infections with an outbreak strain of Salmonella by date of illness as of August 12, 2010.

The outbreak can be visually described with a chart showing the number of persons who became ill each day. This chart is called an epidemic curve or epi curve. Illnesses that occurred after May 30, 2010, might not yet be reported due to the time it takes between when a person becomes ill, when laboratory testing is completed, when the diagnosis is confirmed, and when the illness is reported. For typhoid fever outbreaks, this takes an average of 8-10 weeks. This delay is denoted by the gray box on the epi curve.

 
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