According to the Centers for Disease Control and Prevention, healthcare workers are considered to be at significant risk for acquiring or transmitting hepatitis B, measles, mumps, rubella, varicella (chicken pox), tetanus, diphtheria, pertussis (whooping cough), and influenza. Experience in psychological work; at least one (1) year of supervised experience by a licensed psychologist in the field of psychological services; the year of supervised experience may be interpreted as an academic year of full-time supervised internship in an approved clinical program.