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 9, 2023 (Week 49)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 15,236 32,999 1,400,231 1,564,347
New England 242 1,650 38,095 49,834
Connecticut - 430 1,155 11,764
Maine 64 75 2,814 2,969
Massachusetts - 687 25,664 26,869
New Hampshire 61 82 2,629 2,686
Rhode Island 90 694 4,601 4,335
Vermont 27 37 1,232 1,211
Middle Atlantic 1,835 4,185 182,951 181,944
New Jersey - 789 29,933 31,515
New York (excluding New York City) 935 1,032 39,768 37,846
New York City - 1,497 61,614 60,714
Pennsylvania 900 1,231 51,636 51,869
East North Central 1,810 4,577 185,722 216,189
Illinois 77 1,811 50,673 67,215
Indiana 528 879 30,083 32,022
Michigan 290 881 31,318 40,739
Ohio 618 1,211 51,075 51,763
Wisconsin 297 562 22,573 24,450
West North Central 856 2,137 89,036 96,321
Iowa 161 319 12,808 13,990
Kansas 114 335 10,037 13,294
Minnesota 102 497 20,202 20,997
Missouri 479 746 30,000 30,397
Nebraska - 246 8,365 9,152
North Dakota - 91 3,113 3,533
South Dakota - 123 4,511 4,958
South Atlantic 3,953 7,719 311,272 349,421
Delaware 108 227 5,382 4,921
District of Columbia 76 198 7,839 7,758
Florida 1,737 2,784 105,754 100,460
Georgia 747 1,550 61,186 69,082
Maryland U NC U 29,276
North Carolina 10 1,447 56,744 61,272
South Carolina 613 774 31,221 33,775
Virginia 634 976 39,059 38,629
West Virginia 28 115 4,087 4,248
East South Central 1,730 2,460 86,314 104,465
Alabama 684 972 32,058 29,491
Kentucky 257 546 15,843 17,196
Mississippi 789 507 18,163 21,923
Tennessee - 1,094 20,250 35,855
West South Central 637 4,895 190,172 219,268
Arkansas - 435 15,891 17,109
Louisiana 404 876 33,867 34,503
Oklahoma 67 472 14,481 19,326
Texas 166 3,194 125,933 148,330
Mountain 993 2,573 102,910 111,670
Arizona 483 883 38,040 38,854
Colorado - 847 23,672 24,904
Idaho 79 144 5,425 5,649
Montana 39 92 3,144 3,913
Nevada 219 331 11,020 15,406
New Mexico - 256 9,747 10,644
Utah 152 255 10,401 10,579
Wyoming 21 50 1,461 1,721
Pacific 3,180 5,050 213,759 235,235
Alaska 83 121 3,963 5,057
California 2,241 4,113 176,675 182,914
Hawaii - 132 - 5,241
Oregon 327 382 14,374 14,786
Washington 529 571 18,747 27,237
U.S. Territories - 102 1,138 4,402
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 102 1,138 4,402
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 5 48 127
Total 15,236 33,085 1,401,417 1,568,876
  • 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.