Final answer:
Contact precautions, hand hygiene, and strict disinfection are the isolation precautions when caring for a newborn with herpes simplex virus (HSV).
Step-by-step explanation:
When caring for a newborn with herpes simplex virus (HSV), the nurse should follow contact precautions. This includes wearing gloves and a gown when in direct contact with the patient or any potentially contaminated surfaces.
Additionally, the nurse should practice hand hygiene by washing their hands thoroughly with soap and water or using an alcohol-based hand sanitizer.
It is important to prevent the spread of the virus to other newborns, so the nurse should also ensure strict disinfection of any items that come into contact with the patient.