 If an environment is high in starch or protein, water, oxygen, has a neutral pH level, and maintains a temperature between 5 °C and 60 °C (danger zone) for even a brief period of time (~0–20 minutes), bacteria are likely to survive.Up to May, 2018, 26 states in the United States confirmed with an outbreak of the bacteria strain .Several investigations show the contamination might have come from the Yuma, Ariz. growing region.