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 December 16, 2023 (Week 50)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 14,707 32,891 1,438,348 1,596,002
New England 178 1,650 39,796 50,876
Connecticut - 430 1,155 12,049
Maine 63 75 2,894 3,031
Massachusetts 12 688 27,180 27,409
New Hampshire 7 82 2,635 2,725
Rhode Island 96 694 4,700 4,429
Vermont - 37 1,232 1,233
Middle Atlantic 1,842 4,185 188,831 185,526
New Jersey 19 789 32,258 32,136
New York (excluding New York City) 785 1,032 40,539 38,586
New York City 259 1,498 63,506 61,887
Pennsylvania 779 1,231 52,528 52,917
East North Central 1,710 4,592 189,862 220,732
Illinois 82 1,811 52,046 68,626
Indiana 439 879 30,706 32,758
Michigan 340 833 32,186 41,572
Ohio 591 1,211 51,972 52,870
Wisconsin 258 562 22,952 24,906
West North Central 944 2,137 91,034 98,245
Iowa 154 319 13,138 14,258
Kansas 171 335 10,208 13,548
Minnesota 114 497 20,676 21,437
Missouri 455 746 30,614 31,103
Nebraska - 246 8,644 9,287
North Dakota 50 91 3,243 3,591
South Dakota - 123 4,511 5,021
South Atlantic 3,537 7,358 323,919 356,779
Delaware - 227 5,382 4,987
District of Columbia 85 198 7,924 7,915
Florida 1,677 2,784 107,959 102,663
Georgia 1,121 1,551 69,580 70,457
Maryland U NC U 29,853
North Carolina 8 1,447 57,992 62,596
South Carolina 622 774 31,843 34,504
Virginia - 976 39,059 39,460
West Virginia 24 115 4,180 4,344
East South Central 1,735 2,469 88,666 106,414
Alabama 583 972 32,655 30,050
Kentucky 409 546 16,253 17,484
Mississippi 743 919 19,508 22,353
Tennessee - 1,094 20,250 36,527
West South Central 580 4,897 191,725 223,576
Arkansas 158 435 16,517 17,446
Louisiana 353 876 34,550 35,166
Oklahoma 69 474 14,725 19,699
Texas - 3,194 125,933 151,265
Mountain 1,320 2,578 106,370 113,906
Arizona 414 881 38,671 39,619
Colorado 416 850 24,541 25,479
Idaho 68 145 5,540 5,756
Montana 41 95 3,230 3,983
Nevada 177 346 12,501 15,690
New Mexico - 256 9,747 10,853
Utah 184 255 10,643 10,780
Wyoming 20 50 1,497 1,746
Pacific 2,861 5,051 218,145 239,948
Alaska 79 121 4,077 5,151
California 2,149 4,113 180,306 186,632
Hawaii - 123 - 5,364
Oregon 278 382 14,660 15,057
Washington 355 571 19,102 27,744
U.S. Territories - 102 1,138 4,504
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 102 1,138 4,504
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 5 48 130
Total 14,707 32,952 1,439,534 1,600,636
  • 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 2022 and 2023 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).
  • § Beginning in January 2022, only confirmed cases are published to align with the approved CSTE position statement 21-ID-06, whereas in previous years, all case classification statuses were published. This change may cause a decrease in published case counts when compared to previous years.
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. CDC Division of Health Informatics and Surveillance. 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.