The Public Health Officer is responsible for ensuring that the ship's crew and passengers maintain good health and hygiene, according to USPH, WHO and CDC. They monitor outbreaks of infectious diseases and implement measures to prevent their spread, perform routine health inspections, and enforce health policies and regulations.

The nurse on a cruise ship is responsible for providing nursing care to guests and crew. They must have a nursing degree, added to minimum 3 to 4 years of experience from a large hospital in emergency care, trauma care or intensive care. They will be expected to also have BLS, ITLS, ATLS and PALS certificates by an institution recognized by AHA (American Heart Association).

The Medical Secretary is responsible for managing the admin tasks in the ship's medical center. They reply to emails, answer to the phone, welcome crew and guests, maintain medical records, schedule appointments offshore to crew as needed, manage inventory of medical supplies, and assist with billing and insurance claims. They are an important piece of the customer service offered to all patients that walk-in, whether crew or guests.

The Health Care Assistant works under the supervision of the doctor and head nurse and provides basic medical care to passengers and crew members. They assist with patient care and basic procedures, keep medical records, and help with the administration of medications. A HCA can be a technical level of nurse, a phlebotomist or a doctor or nurse who do not yet carry min. 3-4 years of Emergency experience as required by Maritime Law.