%0 Journal Article %T Hepatitis Delta Virus Reporting Requirements in the United States and Territories: A Systematic Review. %A Assadi-Rad M %A Acosta BE %A Hesterman MC %A Fallon BS %A Hill RL %A Farnsworth EW %A Barbeau B %A Vilven D %A Lynch KM %A Weller ML %J Open Forum Infect Dis %V 11 %N 4 %D 2024 Apr %M 38590737 %F 4.423 %R 10.1093/ofid/ofae076 %X 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.