Final answer:
To comply with public health laws, the nurse must follow proper infection control measures such as stringent hand hygiene and thorough disinfection of items that come into contact with patients.
Step-by-step explanation:
To comply with public health laws, the nurse should follow proper infection control measures. This involves implementing stringent hand hygiene protocols and carefully disinfecting all surfaces and equipment that come into contact with patients.
In the scenario provided, where Marisa was isolated to prevent the spread of her infection, hospital staff are mandated to observe strict protocols which include robust hand hygiene practices and thorough disinfection of all items used by or in contact with her. This ensures that further transmission of infection is minimized and complies with the expectation of public health safety.