A San Francisco Bay Area resident has Salmonella St. Paul that has sickened over 100 people in in at least nine states and been linked to consumption of tomatoes. The California Department of Public Health said Friday that it is working with local officials to determine if the Contra Costa County resident’s illness stemmed from eating tomatoes in California or in another part of the country. The department also said it is working with Oregon officials to determine if an Oregon resident confirmed to have the strain of the illness known as Salmonella St. Paul ate tomatoes while in Southern California.