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 23, 2023 (Week 38)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 14,579 33,367 1,065,577 1,218,347
New England 173 1,650 30,334 38,531
Connecticut - 430 1,155 9,052
Maine 56 74 2,176 2,321
Massachusetts 4 700 20,417 20,813
New Hampshire - 82 2,005 2,078
Rhode Island 97 694 3,616 3,316
Vermont 16 37 965 951
Middle Atlantic 2,051 4,178 142,922 141,252
New Jersey 375 789 25,891 24,364
New York (excluding New York City) 928 1,032 30,482 29,088
New York City 748 1,453 48,475 47,338
Pennsylvania - 1,233 38,074 40,462
East North Central 1,930 4,622 142,709 167,505
Illinois 77 1,811 37,939 52,323
Indiana 370 837 22,551 24,783
Michigan 350 975 23,842 31,171
Ohio 697 1,213 40,132 40,175
Wisconsin 436 562 18,245 19,053
West North Central 864 2,153 67,043 74,784
Iowa 133 334 9,862 10,888
Kansas 99 325 6,398 10,403
Minnesota 109 497 15,551 16,295
Missouri 483 746 23,400 23,622
Nebraska - 246 6,488 7,112
North Dakota - 92 1,780 2,655
South Dakota 40 125 3,564 3,809
South Atlantic 3,561 7,719 233,930 271,566
Delaware 116 210 4,080 3,721
District of Columbia 32 199 5,324 5,999
Florida 1,919 2,786 82,443 78,006
Georgia - 1,545 42,665 54,037
Maryland U NC U U
North Carolina 4 1,445 41,471 47,756
South Carolina 733 766 24,300 26,509
Virginia 732 976 30,529 30,051
West Virginia 25 104 3,118 3,331
East South Central 1,175 2,451 70,409 81,703
Alabama 647 972 25,098 22,726
Kentucky 402 555 12,151 13,299
Mississippi 126 485 12,910 17,380
Tennessee - 1,094 20,250 28,298
West South Central 737 4,795 132,949 172,944
Arkansas 204 436 12,230 13,225
Louisiana 472 830 26,259 26,985
Oklahoma 61 473 11,842 15,226
Texas - 3,132 82,618 117,508
Mountain 1,020 2,489 78,179 86,559
Arizona 478 918 28,835 30,414
Colorado - 781 18,009 19,078
Idaho 76 148 4,187 4,270
Montana 13 93 2,233 3,067
Nevada 183 367 9,028 11,912
New Mexico 23 244 6,603 8,315
Utah 217 253 8,111 8,208
Wyoming 30 52 1,173 1,295
Pacific 3,068 5,049 167,102 183,503
Alaska 74 121 2,953 3,990
California 2,317 4,112 138,698 142,379
Hawaii - 132 - 4,060
Oregon 292 383 11,031 11,542
Washington 385 590 14,420 21,532
U.S. Territories - 124 1,138 3,401
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 124 1,138 3,401
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 7 40 104
Total 14,579 33,416 1,066,755 1,221,852
  • 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.