Number of reported acute and chronic cases* of hepatitis C virus infection by case status — United States, 2020

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◀ Table 5.1
Table 5.3 ▶
Number of reported acute and chronic cases* of hepatitis C virus infection by case status — United States, 2020
For 2020, cases that meet both the confirmed and probable case definitions for acute hepatitis C and newly reported chronic hepatitis C are summarized to show the total burden of cases reported by jurisdictions to CDC
Acute Hepatitis C Chronic Hepatitis C
State or Jurisdiction Confirmed Probable Confirmed Probable
Alabama 49 4 5,697 1,983
Alaska N N 529 302
Arizona U U U U
Arkansas 65 72 2,511 1,721
California† 59 13 8,717 10,647
Colorado 10 — 1,883 998
Connecticut 12 — 880 —
Delaware 49 1 U U
District of Columbia U U U U
Florida 1,336 352 9,365 4,272
Georgia 138 99 3,872 5,600
Hawaii — — U U
Idaho 2 1 702 779
Illinois 203 20 2,873 1,038
Indiana 243 21 N N
Iowa 17 — 830 —
Kansas 9 3 587 1,283
Kentucky 143 115 N N
Louisiana 281 2 4,207 1,222
Maine 160 46 740 672
Maryland 47 10 2,202 1,663
Massachusetts 150 8 2,163 1,463
Michigan 119 23 2,475 1,892
Minnesota 58 3 816 216
Mississippi 40 34 2,613 —
Missouri 25 — 4,867 —
Montana 17 1 672 310
Nebraska 9 2 355 293
Nevada 12 4 U U
New Hampshire 6 20 48 111
New Jersey 115 6 2,488 2,908
New Mexico 1 — 2 9
New York 340 24 4,849 2,365
North Carolina 75 25 N N
North Dakota — — 456 367
Ohio 186 55 7,027 5,649
Oklahoma 20 25 3,068 3,811
Oregon 30 7 1,848 1,934
Pennsylvania 146 — 7,615 4,315
Rhode Island U U U U
South Carolina 6 3 3,036 4,034
South Dakota 7 4 364 367
Tennessee 170 65 5,307 3,846
Texas 17 21 N N
Utah 104 55 647 570
Vermont 1 — 251 268
Virginia 29 22 3,884 3,257
Washington 105 14 2,968 1,551
West Virginia 94 43 2,180 1,733
Wisconsin 93 4 1,400 511
Wyoming — — 306 —
Total 4,798 1,227 107,300 73,960
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Source: CDC, National Notifiable Diseases Surveillance System.

* Confirmed and probable case definition available for acute hepatitis C and for chronic hepatitis C.

† California excludes chronic hepatitis C case counts from Los Angeles County (except for the City of Long Beach and the City of Pasadena) and San Diego County, geographic areas which include approximately 32% of California’s total population.

—: 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.

For 2020, cases that meet both the confirmed and probable case definitions for acute hepatitis C and 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/ Case Ascertainment and Case Reporting).  Cases of probable hepatitis C require a positive test for antibodies to hepatitis C virus (anti-HCV) and an absence of other case definition criteria.

Therefore, it is unknown if cases represent current hepatitis C virus infection or a resolved hepatitis C virus infection. Jurisdictions without a public health reporting law or mandate for negative ribonucleic acid (RNA) test results will classify a positive anti-HCV test result as a probable case of hepatitis C.

Whereas jurisdictions with a public health reporting law or mandate for negative RNA test results will be more able to determine whether a positive anti-HCV test result is not a case (i.e., evidence of prior infection). For this reason, caution should be taken when comparing case counts for probable acute and chronic hepatitis C across jurisdictions.

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