Three categories of occupations: 1.) Clinicians 2.) Scientists 3.) Non-Clinician Specialties 

Interdisciplinary/Interprofessional jobs in public health include jobs that typically require additional training (license,  certification, or registration) and/or an additional degree beyond the MPH, BSPH, DrPH, PhD (or other public health degree).  Clinical professionals include public health/registered nurses, public health/preventive medicine physicians, public health  dentists, public health veterinarians, physician assistants, public health pharmacists, and dieticians/nutritionists, as well as counselors and therapists such as social workers or mental health counselors. This cluster also includes roles that require a  graduate degree in a discipline outside of public health. There are scientific and research roles such as laboratory scientists, microbiologists, virologists, parasitologists, and food scientists/technologists that require degrees in the biological or other life  sciences, and other non-clinician specialty roles such as lawyers, urban planners, or engineers.