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 23, 2023 (Week 51)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 11,424 32,890 1,458,446 1,624,070
New England 166 1,650 39,993 51,899
Connecticut - 430 1,155 12,308
Maine 54 75 2,951 3,079
Massachusetts - 688 27,180 27,966
New Hampshire - 82 2,635 2,776
Rhode Island 89 694 4,789 4,505
Vermont 23 37 1,283 1,265
Middle Atlantic 1,720 4,185 190,746 188,982
New Jersey - 789 32,258 32,701
New York (excluding New York City) 843 1,032 41,380 39,327
New York City - 1,498 63,506 63,027
Pennsylvania 877 1,231 53,602 53,927
East North Central 1,399 4,593 193,020 224,580
Illinois 59 1,811 53,240 69,753
Indiana 380 879 31,150 33,386
Michigan 173 823 32,486 42,386
Ohio 626 1,211 53,003 53,730
Wisconsin 161 562 23,141 25,325
West North Central 686 2,137 92,222 99,843
Iowa 41 319 13,208 14,446
Kansas 83 335 10,291 13,752
Minnesota 112 497 21,098 21,780
Missouri 421 746 31,190 31,634
Nebraska - 246 8,644 9,499
North Dakota 29 91 3,280 3,645
South Dakota - 123 4,511 5,087
South Atlantic 2,312 7,267 327,560 363,481
Delaware - 227 5,382 5,098
District of Columbia 33 198 8,035 8,037
Florida 1,722 2,784 110,182 104,883
Georgia 69 1,551 69,649 71,664
Maryland U NC U 30,449
North Carolina 1 1,447 58,679 63,695
South Carolina 469 774 32,312 35,063
Virginia - 976 39,059 40,184
West Virginia 18 115 4,262 4,408
East South Central 871 2,469 89,548 108,235
Alabama 608 972 33,274 30,623
Kentucky 263 546 16,516 17,882
Mississippi - 919 19,508 22,695
Tennessee - 1,094 20,250 37,035
West South Central 319 4,897 194,813 226,938
Arkansas - 435 16,517 17,703
Louisiana 319 878 35,168 35,759
Oklahoma - 474 14,725 19,969
Texas - 3,207 128,403 153,507
Mountain 1,185 2,578 108,229 116,002
Arizona 450 884 39,592 40,293
Colorado 433 852 25,099 26,099
Idaho 44 145 5,594 5,873
Montana 42 95 3,293 4,030
Nevada 34 346 12,535 15,954
New Mexico - 256 9,747 11,030
Utah 153 255 10,833 10,957
Wyoming 29 50 1,536 1,766
Pacific 2,766 5,052 222,315 244,110
Alaska 41 121 4,154 5,253
California 2,088 4,113 183,737 189,926
Hawaii - 97 - 5,461
Oregon 313 382 14,998 15,276
Washington 324 571 19,426 28,194
U.S. Territories - 99 1,138 4,576
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 99 1,138 4,576
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 5 48 131
Total 11,424 32,951 1,459,632 1,628,777
  • 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.