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 October 21, 2023 (Week 42)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 13,875 32,999 1,194,071 1,348,673
New England 198 1,650 31,362 42,784
Connecticut - 430 1,155 10,015
Maine 48 74 2,399 2,576
Massachusetts - 700 20,417 23,165
New Hampshire 30 82 2,268 2,320
Rhode Island 98 694 4,051 3,668
Vermont 22 37 1,072 1,040
Middle Atlantic 1,911 4,177 157,502 156,629
New Jersey 48 789 27,791 27,088
New York (excluding New York City) 931 1,032 33,953 32,397
New York City - 1,495 52,296 52,402
Pennsylvania 932 1,232 43,462 44,742
East North Central 1,731 4,622 157,349 185,786
Illinois 99 1,811 40,973 57,824
Indiana 429 862 25,337 27,434
Michigan 294 975 26,732 34,878
Ohio 658 1,211 44,371 44,572
Wisconsin 251 562 19,936 21,078
West North Central 766 2,082 73,577 82,965
Iowa 110 333 10,909 12,022
Kansas 82 280 6,915 11,524
Minnesota 103 497 17,295 18,067
Missouri 471 746 25,915 26,264
Nebraska - 246 6,910 7,842
North Dakota - 91 1,790 2,996
South Dakota - 125 3,843 4,250
South Atlantic 3,393 7,719 264,768 300,389
Delaware - 227 4,470 4,229
District of Columbia 114 199 5,670 6,679
Florida 1,765 2,785 91,335 85,940
Georgia - 1,550 51,705 59,597
Maryland U NC U 24,784
North Carolina 2 1,445 47,158 52,798
South Carolina 695 774 27,006 29,289
Virginia 774 976 33,888 33,373
West Virginia 43 111 3,536 3,700
East South Central 1,299 2,454 76,370 90,535
Alabama 754 972 27,737 25,308
Kentucky 409 547 13,496 14,738
Mississippi 136 487 14,887 19,210
Tennessee - 1,094 20,250 31,279
West South Central 459 4,801 161,082 190,554
Arkansas 200 435 13,886 14,703
Louisiana 211 850 28,908 29,806
Oklahoma 48 473 12,679 16,819
Texas - 3,106 105,609 129,226
Mountain 1,466 2,494 87,480 96,044
Arizona 518 873 32,484 33,680
Colorado 427 782 20,629 21,151
Idaho 50 148 4,631 4,788
Montana 45 87 2,580 3,402
Nevada 226 343 9,840 13,264
New Mexico - 241 7,039 9,221
Utah 177 255 8,986 9,068
Wyoming 23 50 1,291 1,470
Pacific 2,652 5,049 184,581 202,987
Alaska 33 121 3,343 4,373
California 1,930 4,112 152,914 157,614
Hawaii - 132 - 4,515
Oregon 325 382 12,307 12,772
Washington 364 590 16,017 23,713
U.S. Territories - 124 1,138 3,801
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 124 1,138 3,801
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 7 42 117
Total 13,875 33,085 1,195,251 1,352,591
  • 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.