Contamination vehicles facilitate the transfer of micro-organisms from one location to another, serving as a potential source for contamination.
Among the choices mentioned, Blast Chillers do not function as contamination vehicles. They resemble high-performance freezers since their purpose is to freeze food rapidly. This process prevents food from entering the "danger zone temperature of contamination" - the interval between cooking and cooling temperatures.
Due to this quick freezing technique, the likelihood of items inside a blast chiller facing contamination is significantly reduced, as the cold environment inhibits bacterial growth.
Xerxes is likely afflicted with FUNCTIONAL NEUROLOGICAL SYMPTOM DISORDER, which is characterized by patients experiencing various symptoms despite having normal bodily systems that function improperly.