┊ dashed lines mark 1991 Gulf War recession · 2001 Dot-com bust & 9/11 · 2008 Global financial crisis · 2020 COVID-19 pandemic
Method & caveats. Annual reported acute hepatitis C incidence from NCHS and CDC NNDSS; chronic infection is excluded. Anti-HCV testing became available in May 1990; probable-case criteria changed in 2016 and 2020. IDNotif reports 45 reporting jurisdictions in 2019. Rates through 2019 are NCHS's; rates from 2020 are the NNDSS final count divided by the Census July 1 resident population (FRED POPTHM), using a later population vintage (about 1% higher denominator). This is not always the same construction: IDNotif excludes populations of jurisdictions where a disease was not notifiable or data were unavailable; STD rates before 1991 use civilian population. Selected years before 1988 are not interpolated.
Sources
Every value on this page is read from the publisher below. Current and historical source documents: