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 Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 15,294 33,890 396,052 494,163
New England 593 892 11,755 13,669
Connecticut - 0 - 1,155
Maine 42 80 846 895
Massachusetts 431 644 8,649 8,894
New Hampshire - 79 557 812
Rhode Island 95 387 1,291 1,500
Vermont 25 36 412 413
Middle Atlantic 1,910 4,304 55,891 61,116
New Jersey 467 787 9,993 11,008
New York (excluding New York City) 750 1,300 11,953 12,194
New York City - 1,560 17,744 20,517
Pennsylvania 693 1,210 16,201 17,397
East North Central 1,686 4,390 48,439 68,002
Illinois 80 1,311 8,376 21,572
Indiana 376 882 9,197 10,365
Michigan 259 837 8,491 10,653
Ohio 629 1,213 15,117 17,535
Wisconsin 342 533 7,258 7,877
West North Central 806 2,131 24,749 30,709
Iowa 173 315 3,633 4,338
Kansas 123 304 2,004 4,298
Minnesota 92 482 5,984 6,945
Missouri 344 746 9,080 9,682
Nebraska - 247 1,844 2,784
North Dakota 50 87 980 1,100
South Dakota 24 118 1,224 1,562
South Atlantic 4,235 11,580 92,320 106,927
Delaware - 227 1,561 1,841
District of Columbia 77 187 2,088 2,123
Florida 1,754 6,951 33,125 33,901
Georgia 942 1,534 18,356 23,321
Maryland U NC U U
North Carolina 5 1,426 13,876 20,944
South Carolina 720 822 9,994 10,355
Virginia 711 934 12,080 13,079
West Virginia 26 115 1,240 1,363
East South Central 992 2,385 18,092 33,514
Alabama 622 834 10,229 10,594
Kentucky 275 546 4,633 4,824
Mississippi 95 1,004 3,230 6,648
Tennessee - 1,056 - 11,448
West South Central 1,145 4,719 51,422 70,818
Arkansas 197 393 4,419 5,903
Louisiana 342 892 9,505 11,397
Oklahoma 43 383 2,890 5,971
Texas 563 3,259 34,608 47,547
Mountain 1,127 2,666 30,607 36,384
Arizona 409 893 10,893 12,584
Colorado 251 857 7,540 7,846
Idaho 57 145 1,652 1,831
Montana 41 98 997 1,162
Nevada 146 374 3,810 5,602
New Mexico 16 255 2,070 3,403
Utah 186 255 3,179 3,416
Wyoming 21 51 466 540
Pacific 2,800 4,909 62,777 73,024
Alaska 50 124 1,500 1,630
California 2,171 3,928 51,155 60,225
Hawaii - 0 - -
Oregon 250 383 4,336 4,728
Washington 329 571 5,786 6,441
U.S. Territories - 99 - 884
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 99 - 884
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 3 8 19
Total 15,294 33,891 396,060 495,066
  • 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.