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 September 16, 2023 (Week 37)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 12,868 33,418 1,034,736 1,163,407
New England 661 1,650 30,155 37,484
Connecticut - 430 1,155 8,807
Maine 53 74 2,112 2,259
Massachusetts 441 700 20,413 20,230
New Hampshire 48 82 2,014 2,028
Rhode Island 102 694 3,515 3,241
Vermont 17 37 946 919
Middle Atlantic 1,706 4,218 136,864 137,195
New Jersey - 789 23,105 23,689
New York (excluding New York City) - 1,032 28,669 28,257
New York City 794 1,457 47,016 45,962
Pennsylvania 912 1,233 38,074 39,287
East North Central 1,973 4,622 137,663 162,984
Illinois 68 1,811 36,518 50,907
Indiana 483 837 21,328 24,062
Michigan 277 975 23,094 30,343
Ohio 717 1,206 38,961 39,108
Wisconsin 428 562 17,762 18,564
West North Central 1,061 2,153 65,378 72,667
Iowa 200 334 9,667 10,554
Kansas 83 325 6,299 10,097
Minnesota 100 497 15,141 15,867
Missouri 520 746 22,715 22,934
Nebraska 158 246 6,488 6,933
North Dakota - 92 1,780 2,578
South Dakota - 125 3,288 3,704
South Atlantic 1,364 7,249 226,322 242,377
Delaware 80 210 3,964 3,665
District of Columbia - 199 5,292 5,820
Florida - 2,786 77,706 75,691
Georgia - 1,597 42,665 52,509
Maryland U NC U U
North Carolina 5 1,445 40,490 46,412
South Carolina 595 766 23,567 25,828
Virginia 648 976 29,607 29,213
West Virginia 36 104 3,031 3,239
East South Central 1,239 2,451 68,841 79,678
Alabama 725 972 24,430 22,062
Kentucky 411 555 11,760 12,955
Mississippi 103 485 12,401 16,902
Tennessee - 1,094 20,250 27,759
West South Central 243 4,957 130,569 168,271
Arkansas 188 436 11,839 12,860
Louisiana - 814 24,584 26,236
Oklahoma 54 473 11,528 14,799
Texas 1 3,399 82,618 114,376
Mountain 1,570 2,523 76,436 84,070
Arizona 462 918 27,876 29,496
Colorado 505 781 18,009 18,569
Idaho 58 148 4,070 4,132
Montana 44 93 2,193 2,986
Nevada 251 367 8,846 11,562
New Mexico 14 257 6,426 8,081
Utah 236 253 7,880 8,001
Wyoming - 52 1,136 1,243
Pacific 3,051 5,049 162,508 178,681
Alaska 64 121 2,856 3,879
California 2,330 4,112 134,852 138,606
Hawaii - 142 - 3,944
Oregon 326 383 10,765 11,276
Washington 331 590 14,035 20,976
U.S. Territories - 124 1,138 3,356
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 124 1,138 3,356
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 7 41 100
Total 12,868 33,518 1,035,915 1,166,863
  • 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.