State has 10 confirmed salmonella cases

MILWAUKEE -- The number of confirmed cases of salmonella food poisoning in Wisconsin believed to be linked to tainted tomatoes has climbed to 10.

But three months after the salmonella outbreak began across the country, federal health officials haven't yet pinpointed the source. The nationwide outbreak involves 36 states.

The federal Centers for Disease Control and Prevention announced this week it was broadening its investigation to include foods commonly consumed with tomatoes.

The government has not issued any new warnings about produce, beyond certain types of tomatoes, including red plum, red Roma and red round tomatoes, unless they come from a list of tomato-producing states deemed safe.