The decision to offer a definitive source of the outbreak also seemed entirely unnecessary. (alternativemagazineonline.co.uk)
The evidence available at this time suggests that a common meal item or ingredient served at Chipotle Mexican Grill restaurants in several states is a likely source of this outbreak. (www2.erie.gov)
The study also notes annual mass pilgrimages by Muslims to Saudi Arabia and Iraq as sources of outbreaks. (sciencedaily.com)