Final answer:
The recommended action for excluding the cook from work until they are symptom-free for 48 hours is to follow protocols for preventing the spread of infection.
Step-by-step explanation:
The recommended action for excluding the cook from work until they are symptom-free for 48 hours is to follow protocols for preventing the spread of infection. This would include staying home and resting, not attending work or going out with friends, and seeking medical attention if symptoms persist beyond 48 hours. Additionally, it is important for healthcare workers to take appropriate precautions to prevent infection by following strict hand hygiene practices, using protective equipment, and disinfecting surfaces and equipment.