In September 2017 Colorado public health officials investigated an outbreak of E. coli O121 associated with recreational swimming at Villa Sport Athletic Center located in Colorado Springs. Three confirmed cases and three primary cases all went to the pool on the same day, September 9, 2017. Two cases were hospitalized. Both developed the hemolytic uremic syndrome. No one died.
In June 2016 the CDC announced that public health officials were investigating a multistate outbreak of E. coli O121 linked to flour produced at the General Mills’ Kansas City, Missouri facility. In interviews with ill persons, sixteen (76%) reported that they or someone in their household used flour in the week before they became ill. Twelve (55%)of 22 people reported using Gold Medal brand flour. On September 29, 2016, the outbreak was declared to be over. There were 63 ill people reported by 24 states.