A restaurant that serves a highly susceptible population (such as a hospital) has a food handler diagnosed with nontyphoidal Salmonella but showing no symptoms. What is required?

Giải thích

When serving a highly susceptible population, a food handler diagnosed with nontyphoidal Salmonella must be excluded even if asymptomatic, because these guests are especially vulnerable. In a general operation that same asymptomatic diagnosis may be restricted rather than excluded — restriction is the wrong answer here only because of the highly susceptible population in the stem, which raises the standard to exclusion. The diagnosis itself, not the appearance of symptoms, is what triggers the action, so letting the handler work normally or waiting for symptoms is unsafe.