Nationally Notifiable Infectious Diseases and Conditions, United States: Weekly Tables

Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending April 20, 2024 (Week 16)
Reporting Area Hepatitis C, chronic
Confirmed
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 854 NC 19,988 NP
New England 52 NC 1,423 NP
Connecticut - NC 24 NP
Maine 6 NC 169 NP
Massachusetts 45 NC 1,074 NP
New Hampshire - NC 21 NP
Rhode Island 1 NC 84 NP
Vermont - NC 51 NP
Middle Atlantic 149 NC 2,941 NP
New Jersey - NC 143 NP
New York (excluding New York City) 23 NC 492 NP
New York City 74 NC 609 NP
Pennsylvania 52 NC 1,697 NP
East North Central 81 NC 2,507 NP
Illinois - NC 486 NP
Indiana N NC N NP
Michigan 15 NC 452 NP
Ohio 54 NC 1,293 NP
Wisconsin 12 NC 276 NP
West North Central 66 NC 1,597 NP
Iowa 7 NC 176 NP
Kansas 19 NC 139 NP
Minnesota - NC 69 NP
Missouri 37 NC 992 NP
Nebraska 3 NC 87 NP
North Dakota - NC 76 NP
South Dakota - NC 58 NP
South Atlantic 274 NC 5,074 NP
Delaware 5 NC 135 NP
District of Columbia - NC 13 NP
Florida 126 NC 2,266 NP
Georgia - NC 222 NP
Maryland 25 NC 421 NP
North Carolina N NC N NP
South Carolina 45 NC 612 NP
Virginia 46 NC 851 NP
West Virginia 27 NC 554 NP
East South Central 59 NC 2,893 NP
Alabama 43 NC 1,823 NP
Kentucky N NC N NP
Mississippi - NC 96 NP
Tennessee 16 NC 974 NP
West South Central 93 NC 1,601 NP
Arkansas 7 NC 299 NP
Louisiana 49 NC 677 NP
Oklahoma 37 NC 625 NP
Texas N NC N NP
Mountain 44 NC 1,400 NP
Arizona U NC U NP
Colorado 25 NC 548 NP
Idaho 6 NC 136 NP
Montana - NC 135 NP
Nevada 2 NC 169 NP
New Mexico 6 NC 222 NP
Utah 5 NC 174 NP
Wyoming - NC 16 NP
Pacific 36 NC 552 NP
Alaska 22 NC 192 NP
California - NC - NP
Hawaii U NC U NP
Oregon 14 NC 360 NP
Washington - NC - NP
U.S. Territories - NC 59 NP
American Samoa - NC - NP
Commonwealth of Northern Mariana Islands - NC - NP
Guam - NC 2 NP
Puerto Rico - NC 56 NP
U.S. Virgin Islands - NC 1 NP
Non-U.S. Residents - NC 1 NP
Total 854 NC 20,048 NP
  • U: Unavailable — The reporting jurisdiction was unable to send the data to CDC or CDC was unable to process the data.
  • -: 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, statute, or regulation in the reporting jurisdiction.
  • NN: Not nationally notifiable — This condition was not designated as being nationally notifiable.
  • NP: Nationally notifiable but not published.
  • NC: Not calculated — There is insufficient data available to support the calculation of this statistic.
  • Cum: Cumulative year-to-date counts.
  • * Case counts for reporting years 2023 and 2024 are provisional and subject to change. Cases are assigned to the reporting jurisdiction submitting the case to NNDSS, if the case's country of usual residence is the U.S., a U.S. territory, unknown, or null (i.e. country not reported); otherwise, the case is assigned to the 'Non-U.S. Residents' category. Country of usual residence is currently not reported by all jurisdictions or for all conditions. For further information on interpretation of these data, see https://www.cdc.gov/nndss/data-statistics/readers-guides/.
  • † Previous 52 week maximum and cumulative YTD are determined from periods of time when the condition was reportable in the jurisdiction (i.e., may be less than 52 weeks of data or incomplete YTD data).
Notes:
  • These are weekly cases of selected infectious national notifiable diseases, from the National Notifiable Diseases Surveillance System (NNDSS). NNDSS data reported by the 50 states, New York City, the District of Columbia, and the U.S. territories are collated and published weekly in alphabetical order by condition. Cases reported by state health departments to CDC for weekly publication are subject to ongoing revision of information and delayed reporting. Therefore, numbers listed in later weeks may reflect changes made to these counts as additional information becomes available. Case counts in the tables are presented as published each week. See also Guide to Interpreting Provisional and Finalized NNDSS Data.
  • Weekly tables since 1996 are available on CDC WONDER.
  • Weekly tables since 2014 are available on Data.CDC.gov.
  • Weekly tables for 1952–2017 published in the Morbidity and Mortality Weekly Reports (MMWR) are available at CDC Stacks MMWR, and weekly tables starting in 2018 are available at CDC Stacks NNDSS (once in CDC Stacks NNDSS select "Weekly Tables" in the "Genre" box at the left).
  • Notices, errata, and other notes are available in the Notice To Data Users page.
  • The list of national notifiable infectious diseases and conditions and their national surveillance case definitions are available at https://ndc.services.cdc.gov/. This list incorporates the Council of State and Territorial Epidemiologists (CSTE) position statements approved by CSTE for national surveillance.
Suggested Citation:
  • Centers for Disease Control and Prevention. National Notifiable Diseases Surveillance System, Weekly Tables of Infectious Disease Data. Atlanta, GA. Office of Public Health Data, Surveillance, and Technology. Available at: https://www.cdc.gov/nndss/data-statistics/index.html.
Acknowledgment:
  • CDC acknowledges the local, state, and territorial health departments that collected the data from a range of case ascertainment sources (e.g., health-care providers, hospitals, laboratories) and reported these data to CDC's National Notifiable Diseases Surveillance System.