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 29, 2023 (Week 17)
Reporting Area Chlamydia trachomatis infection §
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 15,315 33,074 444,764 531,581
New England 543 1,111 13,493 16,240
Connecticut - 253 1,156 3,432
Maine 38 81 882 1,087
Massachusetts 438 735 9,726 8,872
New Hampshire 32 93 843 991
Rhode Island - 217 442 1,469
Vermont 35 37 444 389
Middle Atlantic 2,780 4,266 57,744 62,358
New Jersey 489 744 7,892 10,874
New York (excluding New York City) 764 1,532 13,013 12,202
New York City 663 1,456 19,258 21,003
Pennsylvania 864 1,182 17,581 18,279
East North Central 1,858 4,819 56,488 75,576
Illinois 68 1,517 12,525 23,330
Indiana 467 857 8,877 10,973
Michigan 211 962 9,939 13,869
Ohio 708 1,240 16,969 18,659
Wisconsin 404 559 8,178 8,745
West North Central 924 2,116 28,267 32,880
Iowa 128 333 4,414 4,957
Kansas 109 306 1,444 4,530
Minnesota 166 496 7,069 7,214
Missouri 334 730 9,893 10,156
Nebraska 129 222 2,847 3,192
North Dakota - 91 1,009 1,198
South Dakota 58 124 1,591 1,633
South Atlantic 3,421 7,090 102,349 109,076
Delaware - 213 1,843 1,684
District of Columbia 109 188 2,703 2,635
Florida 1,892 2,770 35,587 32,690
Georgia - 1,525 20,799 23,201
Maryland U NC U U
North Carolina 16 1,401 15,301 21,506
South Carolina 643 935 10,798 12,189
Virginia 747 984 13,954 13,661
West Virginia 14 111 1,364 1,510
East South Central 1,172 2,505 31,048 35,214
Alabama 680 971 11,256 10,039
Kentucky 258 516 5,174 5,619
Mississippi 118 526 5,776 6,692
Tennessee 116 1,069 8,842 12,864
West South Central 679 4,889 46,987 76,351
Arkansas 195 425 5,257 5,784
Louisiana 333 799 10,534 11,899
Oklahoma 43 448 3,242 6,570
Texas 108 3,375 27,954 52,098
Mountain 940 2,494 33,138 37,211
Arizona 441 923 12,557 13,482
Colorado - 793 8,521 7,877
Idaho 82 154 1,850 1,746
Montana 38 112 1,146 1,327
Nevada 189 361 2,419 5,171
New Mexico 15 262 2,574 3,417
Utah 175 246 3,572 3,666
Wyoming - 54 499 525
Pacific 2,998 5,305 75,250 86,675
Alaska 39 121 1,447 1,750
California 2,271 4,100 61,975 62,956
Hawaii - 3 - 60
Oregon 288 356 4,987 5,362
Washington 400 1,024 6,841 16,547
U.S. Territories - 112 439 1,184
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 112 439 1,184
U.S. Virgin Islands - 0 - -
Non-U.S. Residents - 7 16 47
Total 15,315 33,169 445,219 532,812
  • 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.