Until this week, the cyclospora outbreak sickening thousands nationwide had no named source just a tentative pattern pointing at lettuce and salad greens.

Federal and state officials are now investigating cases across the nation. Wall Street didn't wait for a conclusion.

Taco Bell, after fielding requests for comment since July 9, finally issued a statement Tuesday: it has “voluntarily and temporarily removed limited ingredients at select restaurants as a precautionary measure". READ The Lempert Report on Substack.