What to know
Number of reported acute and chronic cases* of hepatitis C by case status — United States, 2022
| Acute hepatitis C | Chronic hepatitis C | |||
|---|---|---|---|---|
| State or jurisdiction | Confirmed | Probable | Confirmed | Probable |
| Alabama | 53 | 13 | 4,698 | 3,447 |
| Alaska | N | N | 515 | 210 |
| Arizona | U | U | U | U |
| Arkansas | 27 | 14 | 1,966 | 1,186 |
| California | 159 | 11 | U | U |
| Colorado | 27 | — | 1,948 | 883 |
| Connecticut | 14 | — | 766 | — |
| Delaware | 17 | 3 | 563 | 238 |
| District of Columbia | 24 | — | 171 | 184 |
| Florida | 1,463 | 229 | 8,540 | 3,967 |
| Georgia | 105 | 37 | 4,306 | 6,365 |
| Hawaii | — | — | U | U |
| Idaho | 7 | 1 | 568 | 587 |
| Illinois | 218 | 11 | 2,449 | 1,014 |
| Indiana | 151 | 11 | N | N |
| Iowa | 14 | — | 658 | 14 |
| Kansas | 16 | 4 | 750 | 694 |
| Kentucky | 236 | 88 | N | N |
| Louisiana | 165 | — | 3,103 | 1,091 |
| Maine | 94 | 36 | 606 | 735 |
| Maryland | 42 | 2 | 1,768 | 1,039 |
| Massachusetts | 137 | 9 | 1,705 | 1,003 |
| Michigan | 101 | 3 | 2,186 | 1,073 |
| Minnesota | 50 | 3 | 1,109 | 145 |
| Mississippi | 3 | 30 | 1,119 | 6,185 |
| Missouri | 16 | 6 | 3,954 | 218 |
| Montana | 31 | 9 | 634 | 377 |
| Nebraska | 6 | — | 351 | 309 |
| Nevada | 14 | 1 | 1,846 | 2,460 |
| New Hampshire | 6 | 14 | 73 | 98 |
| New Jersey | 67 | 1 | 2,371 | 2,303 |
| New Mexico | 20 | — | 1,161 | 161 |
| New York | 375 | 19 | 4,272 | 1,705 |
| North Carolina | 57 | 18 | N | N |
| North Dakota | — | — | 377 | 125 |
| Ohio | 90 | 23 | 5,763 | 4,898 |
| Oklahoma | 22 | 13 | 6,078 | 7,703 |
| Oregon | 12 | 8 | 1,524 | 1,864 |
| Pennsylvania | 213 | — | 5,233 | 4,332 |
| Rhode Island | 14 | 2 | 641 | 477 |
| South Carolina | 2 | — | 3,238 | 3,716 |
| South Dakota | 16 | 5 | 385 | 310 |
| Tennessee | 206 | 52 | 5,763 | 2,577 |
| Texas | 42 | 15 | N | N |
| Utah | 185 | 48 | 734 | 626 |
| Vermont | 22 | — | 218 | 80 |
| Virginia | 22 | 11 | 3,779 | 2,162 |
| Washington | 101 | 4 | 2,263 | 1,032 |
| West Virginia | 85 | 24 | 2,336 | 1,584 |
| Wisconsin | 99 | 2 | 1,078 | 510 |
| Wyoming | 2 | — | 239 | — |
| Total | 4,848 | 780 | 93,805 | 69,687 |
Source: CDC, National Notifiable Diseases Surveillance System.
* For confirmed and probable case definitions, see Acute Hepatitis C and Chronic Hepatitis C.
—: No reported cases. The reporting jurisdiction did not submit any cases to CDC.
N: Not reportable. The disease or condition was not reportable by law, statue, or regulation in the reporting jurisdiction.
U: Unavailable. The data were unavailable.
Summary
For 2022, cases that meet the confirmed or probable case definitions for acute hepatitis C or newly reported chronic hepatitis C are summarized to show the total burden of cases reported by jurisdictions to CDC.
The ability of a jurisdiction to apply the case definitions varies (see Technical Notes). Cases of probable hepatitis C require a positive test for antibodies to hepatitis C virus (anti-HCV) in the absence of a hepatitis C virus ribonucleic acid (HCV RNA) test or other case definition criteria.
Therefore, it is unknown if cases classified as chronic probable hepatitis C represent current or resolved infections. Jurisdictions without a public health reporting law or mandate for the reporting of negative HCV RNA test results will classify a positive anti-HCV test result as a probable case of hepatitis C.
Jurisdictions with a public health reporting law or mandate for the reporting of negative HCV RNA test results will be more able to determine whether a positive anti-HCV test result is not a case (that is, evidence of prior infection), whereas jurisdictions without a public health reporting law or mandate for the reporting of negative HCV RNA test results may have higher number of hepatitis C cases characterized as chronic probable hepatitis C. For this reason, caution should be taken when comparing case counts for probable acute and chronic hepatitis C across jurisdictions.