In May, 2007, fresh basil sold in the United Kingdom was found to be contaminated with Salmonella Senftenberg after outbreaks in England and Wales were investigated. Only a minority of the ill had recalled eating basil prior to the onset of illness. Eight samples of prepacked, fresh basil, imported from Israel, tested positive for the outbreak strain of Salmonella Senftenberg. Tests of locally grown basil failed to identify the outbreak strain of Salmonella. At least eight additional cases were detected in Scotland, Denmark, the Netherlands. Eleven cases were identified in the the United States. The Centers for Disease Control attributed eleven U.S. cases to the basil; the resident states of these cases was not available.