HCP stands for "Health Care Provider" or "Health Care Personnel". It refers to all paid and unpaid persons serving in healthcare settings who have the potential for direct or indirect exposure to patients or infectious materials, including body substances, contaminated medical supplies, devices, and equipment, contaminated environmental surfaces, or contaminated air. This includes a wide range of individual titles, such as emergency medical service personnel, nurses, nursing assistants, physicians, technicians, therapists, phlebotomists, pharmacists, students and trainees, and contractual staff not employed by the health care facility, among others. HCPs play a pivotal role within the healthcare ecosystem, acting as the primary drivers for preventing and managing health conditions. They provide a wide array of medical services, including health education and guidance, diagnosis and treatment of chronic and acute illnesses or conditions, and preventative health services. HCP engagement is the process by which pharmaceutical companies build relationships with healthcare professionals to better collaborate and improve patient care outcomes.