There have been a number of outbreaks related to consumption of cookie dough and pathogens in flour. For example, raw flour was found to be the culprit in a June 2009 "E. coli" outbreak involving Nestlé Toll House prepackaged cookie dough, which was recalled; more than 7,000 people fell ill as a result, although none died. In 2010, Nestle decided to switch to heat-treated processing for all flour used in producing cookie dough. In 2016, General Mills recalled flour and cake mixes because of "E. coli" found in the raw flour. In 2015, there was a recall of certain Blue Bell Ice Cream products due to "Listeria monocytogenes" found in the facility that produces cookie dough for the ice cream's chocolate chip cookie dough and other cookie dough containing flavors.