Inquirer
“This a wide-ranging investigation that asks very sick people to list every single thing that they’ve eaten or drank, at the level of every individual ingredient, during the period when they were exposed to the bug,” Garrow said. “This generates a massive list of possible items and locations that may have been the culprit.”
https://www.inquirer.com/health/philadelphia-e-coli-outbreak-20190909.html
By Rita Giordano
The Collected Works of Jim Garrow 