CDC says E. coli outbreak is over, but it never found the source

In mid-November, the CDC detailed a multi-state E. coli outbreak first announced by the FDA. As with other outbreaks, officials were investigating the source of the illnesses, something that was narrowed down to ‘leafy greens,’ but no specific variety, brand, or company was linked. In an update, the CDC says the outbreak is over, but the source is still a …