Published: Aug 12, 2010 8:52 PM EDT
Updated: Aug 13, 2010 4:31 AM EDT

ATLANTA (AP) — Health officials are investigating an outbreak of typhoid fever that has been linked to a frozen tropical fruit product used to make smoothies.

Seven cases have been confirmed — three in California and four in Nevada. Two other California cases are being investigated. Five people have been hospitalized.

The Centers for Disease Control and Prevention said four of the cases have been linked to a Goya brand of fruit pulp that was used in milkshakes or smoothies. No other food was tied to the illnesses.

The fruit pulp was made from mamey (ma-MAY'), a sweet, reddish tropical fruit grown mainly in Central and South America. The company has recalled packages of the pulp.

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Online:

CDC report: http://www.cdc.gov/salmonella/typhoidfever/