Case Definitions Working Group and Communicable Diseases Network Australia 2015. Revised surveillance case definitions: hepatitis B - unspecified; hepatitis B - newly acquired; hepatitis E; syphilis - congenital; infectious syphilis. Communicable Diseases Intelligence. 39, (Jun. 2015), 314–318. DOI:https://doi.org/10.33321/cdi.2015.39.34.