Answer:
cross-contamination
Explanation:
Transfer of food pathogens between food contact surfaces is one major type of cross-contamination.
For example this can occur when raw foods that have food pathogens come in contact with cooked or ready-to-eat food. This results in contamination.
Since narcolepsy is a chronic sleep disorder that causes overwhelming daytime drowsiness, it usually results in overwhelming drowsiness. So, a cause could be not getting enough sleep.
