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 22, 2023 (Week 16)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 14,814 32,493 389,886 488,678
New England 57 1,111 11,673 15,370
Connecticut - 253 1,156 3,237
Maine 32 81 821 1,021
Massachusetts - 735 8,084 8,438
New Hampshire 25 93 784 934
Rhode Island - 217 442 1,371
Vermont - 37 386 369
Middle Atlantic 2,536 4,266 53,772 58,571
New Jersey 492 744 7,404 10,270
New York (excluding New York City) 768 1,532 12,273 11,439
New York City 634 1,456 17,904 19,726
Pennsylvania 642 1,180 16,191 17,136
East North Central 1,972 4,817 52,126 70,749
Illinois 98 1,517 11,311 21,900
Indiana 411 854 7,890 10,219
Michigan 297 959 9,297 12,915
Ohio 717 1,240 15,923 17,529
Wisconsin 449 559 7,705 8,186
West North Central 513 2,098 25,546 30,842
Iowa 57 333 3,690 4,676
Kansas 118 305 1,335 4,238
Minnesota 117 496 6,554 6,754
Missouri - 730 8,784 9,533
Nebraska 159 222 2,686 2,998
North Dakota 1 92 1,005 1,108
South Dakota 61 124 1,492 1,535
South Atlantic 4,019 7,040 77,767 102,131
Delaware 96 213 1,843 1,532
District of Columbia 107 188 2,542 2,483
Florida 1,669 2,758 33,130 30,610
Georgia 768 1,517 1,666 21,835
Maryland U NC U U
North Carolina 11 1,393 14,057 20,210
South Carolina 656 935 10,155 11,254
Virginia 699 984 13,091 12,808
West Virginia 13 111 1,283 1,399
East South Central 1,390 2,505 29,685 32,998
Alabama 697 969 10,594 9,453
Kentucky 351 516 4,916 5,234
Mississippi 115 526 5,449 6,255
Tennessee 227 1,073 8,726 12,056
West South Central 488 4,844 37,765 71,235
Arkansas 232 425 4,955 5,395
Louisiana 217 797 9,673 11,119
Oklahoma 39 448 2,999 6,122
Texas - 3,340 20,138 48,599
Mountain 868 2,493 30,922 34,902
Arizona 481 923 11,819 12,684
Colorado - 793 7,911 7,364
Idaho 100 154 1,753 1,620
Montana 34 112 1,081 1,240
Nevada 59 361 2,112 4,848
New Mexico 7 262 2,370 3,183
Utah 166 246 3,377 3,467
Wyoming 21 54 499 496
Pacific 2,971 5,034 70,630 71,880
Alaska 33 121 1,404 1,659
California 2,238 4,099 58,086 59,163
Hawaii - 3 - 59
Oregon 299 356 4,699 5,051
Washington 401 569 6,441 5,948
U.S. Territories - 112 439 1,092
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 112 439 1,092
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 7 16 44
Total 14,814 32,588 390,341 489,814
  • 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/docs/Readers-Guide-WONDER-Tables-20210421-508.pdf.
  • † 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.