Hepatitis D virus (HDV) is a rare coinfection with hepatitis B virus. Currently, HDV is not a nationally notifiable disease in the United States. Only 55% of states and territories require HDV reporting, and most lack defined case definitions. Standardization of reporting requirements is crucial for monitoring HDV epidemiology.
Keywords: HDV; hepD; hepatitis D virus; hepatitis Delta virus; kolmioviridae.
© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America.