The total number is being debated by health officials, but at least three new cases in Franklin County have been discovered, bringing the total cases inspected by Franklin county officials to 11.

Seven more cases have been discovered in Fairfield and Delaware counties, although State lab tests have yet to link those cases genetically to the strain associated with a recent recall of tomatoes.

Salmonella is fairly common, but the particular strain involved with the outbreak is rare.

Not all tomatoes are considered dangerous. Cherry and grape tomatoes, tomatoes with the vine still attached, home-grown tomatoes, and available Ohio-grown tomatoes are considered safe.

Salmonella symptoms usually appear 12 to 72 hours after infection and usually resemble the flu: headache, fever, diarrhea, nausea, vomiting, and abdominal cramps. Salmonella can be fatal to children, pregnant women, and those with weak immune systems.