Suellen Nicholson is a Senior Medical Scientist heading the Infectious Diseases Serology Laboratory, including the State HIV Reference Laboratory, World Health Organization (WHO) Western Pacific Region serology components of the Reference Laboratory for Measles/Rubella and WHO Collaborating Centre for Viral Hepatitis at the Victorian Infectious Diseases Reference Laboratory (VIDRL). Suellen has over thirty-five years’ experience working in serology laboratories, focused on testing and result interpretation for viruses, bacteria and parasites. In addition to diagnostic, reference and public health work, Suellen has lead a number of research projects and is currently a member of Royal College of Pathologists of Australasia Serology Advisory Committee.