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 21, 2024 (Week 51)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 12,495 35,870 1,355,703 1,627,125
New England 774 1,064 46,358 53,425
Connecticut 140 261 10,033 13,052
Maine 35 81 2,599 2,953
Massachusetts 427 609 25,949 28,519
New Hampshire 57 73 2,409 2,732
Rhode Island 91 389 4,183 4,876
Vermont 24 33 1,185 1,293
Middle Atlantic 1,998 4,244 175,209 197,039
New Jersey 435 748 31,548 35,237
New York (excluding New York City) 733 930 38,270 41,796
New York City - 1,507 55,181 66,137
Pennsylvania 830 1,167 50,210 53,869
East North Central 1,395 4,193 168,109 223,001
Illinois - 1,374 40,104 69,048
Indiana 418 729 30,430 33,205
Michigan 168 876 28,398 42,319
Ohio 640 1,153 47,780 53,755
Wisconsin 169 517 21,397 24,674
West North Central 755 1,987 84,543 96,183
Iowa 84 283 11,511 13,553
Kansas 130 288 11,156 13,200
Minnesota 174 486 19,248 21,524
Missouri 333 648 28,203 30,540
Nebraska - 208 7,452 9,146
North Dakota - 87 2,923 3,393
South Dakota 34 96 4,050 4,827
South Atlantic 2,134 12,317 334,414 373,370
Delaware - 151 4,804 5,611
District of Columbia 69 180 6,701 8,263
Florida 194 6,935 102,397 110,980
Georgia - 1,497 62,963 70,644
Maryland 570 957 30,545 35,165
North Carolina - 1,437 53,043 65,209
South Carolina 520 1,732 33,287 32,483
Virginia 757 911 36,732 40,676
West Virginia 24 103 3,942 4,339
East South Central 980 1,908 59,305 106,456
Alabama 602 884 30,527 32,923
Kentucky 267 592 15,911 16,660
Mississippi 111 361 12,867 20,392
Tennessee - 679 - 36,481
West South Central 686 4,647 187,975 220,625
Arkansas - 399 15,351 17,617
Louisiana 396 750 33,000 35,776
Oklahoma 40 260 10,661 18,952
Texas 250 3,263 128,963 148,280
Mountain 1,174 2,432 100,503 114,344
Arizona 394 833 35,864 40,585
Colorado 523 747 23,436 25,263
Idaho 67 124 4,978 5,700
Montana - 90 3,176 3,611
Nevada 24 344 13,571 15,549
New Mexico - 229 8,364 10,948
Utah 166 239 9,783 10,875
Wyoming - 47 1,331 1,813
Pacific 2,599 4,573 199,287 242,682
Alaska 36 125 4,545 5,056
California 1,934 3,802 163,235 188,846
Hawaii - 99 - 6,171
Oregon 265 354 13,672 15,160
Washington 364 562 17,835 27,449
U.S. Territories - 84 667 5,148
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 84 667 5,148
U.S. Virgin Islands - 0 - -
Non-U.S. Residents 8 4 63 48
Total 12,503 35,915 1,356,433 1,632,321
  • 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).
  • § 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. 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.