食源性疾病第 11 / 320 题
Norovirus outbreaks spread rapidly in restaurants. What is the most effective way for a manager to prevent Norovirus transmission from staff?
a.Rely on hand sanitizer instead of soap and water
b.Exclude ill staff and enforce proper handwashing with no bare-hand contact with ready-to-eat food
c.Cook all food to 135°F
d.Increase the freezer temperature to kill the virus
解析
Norovirus is extremely contagious and spread by the fecal-oral route, so excluding sick employees and strict handwashing plus no bare-hand contact with ready-to-eat food are the key controls. Freezing does not kill Norovirus, sanitizer alone is not effective against it, and 135°F is a holding temperature, not a kill step.
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