Notice: Improvements in data processing at CDC were applied to 2020 and 2021 data beginning with the tables published for week 47. Case count changes between tables published for week 46 and week 47 may be due to changes in data processing rules and not due to changes in disease levels.

Nationally Notifiable Infectious Diseases and Conditions, United States: Weekly Tables

TABLE 1g. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 11, 2021 (Week 49)
Reporting Area Carbapenemase-producing carbapenem-resistant Enterobacteriaceae § Chancroid Chlamydia trachomatis infection
Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †
U.S. Residents, excluding U.S. Territories 8 70 1,433 1,698 - 1 6 - 13,189 33,765 1,378,476 1,463,836
New England - 3 7 77 - 0 - - 483 1,044 36,454 46,238
Connecticut - 0 - - - 0 - - - 262 92 12,016
Maine - 0 - - - 0 - - 34 98 2,930 3,194
Massachusetts - 0 - - - 0 - - 355 578 25,257 23,220
New Hampshire - 0 - 13 - 0 - - 67 89 2,804 2,742
Rhode Island - 3 7 63 - 0 - - - 465 4,540 4,016
Vermont - 0 - 1 - 0 - - 27 34 831 1,050
Middle Atlantic 2 13 382 395 - 0 - - 2,544 3,957 173,512 170,073
New Jersey - 0 - - - 0 - - 377 797 29,203 29,512
New York (excluding New York City) - 0 - - - 0 - - 797 1,004 36,481 39,017
New York City - 8 58 78 - 0 - - 495 1,398 58,112 52,705
Pennsylvania 2 12 324 317 - 0 - - 875 1,172 49,716 48,839
East North Central - 14 236 404 - 1 1 - 611 5,085 185,478 215,719
Illinois - 0 - - - 0 - - 59 1,505 46,045 63,727
Indiana - 11 137 199 - 0 - - - 827 29,662 30,840
Michigan - 7 89 178 - 1 1 - 148 1,057 32,754 41,102
Ohio - 0 - - - 0 - - - 1,256 50,660 55,447
Wisconsin - 2 10 27 - 0 - - 404 656 26,357 24,603
West North Central - 2 18 44 - 0 - - 402 2,156 73,853 92,466
Iowa - 0 - - - 0 - - 53 335 12,297 14,028
Kansas - 0 - - - 0 - - 34 299 5,104 13,594
Minnesota - 1 - 29 - 0 - - 121 516 20,778 20,506
Missouri - 0 - - - 0 - - - 1,248 19,113 28,980
Nebraska - 0 - - - 0 - - 192 239 8,923 8,276
North Dakota - 2 15 11 - 0 - - - 96 3,582 3,315
South Dakota - 1 3 4 - 0 - - 2 110 4,056 3,767
South Atlantic 1 29 417 568 - 0 - - 3,656 7,971 314,467 322,917
Delaware - 3 30 25 - 0 - - - 214 4,401 4,291
District of Columbia - 0 - - - 0 - - 10 169 6,326 3,094
Florida N NC N N - 0 - - 1,529 2,266 97,554 92,323
Georgia - 10 78 269 - 0 - - 730 1,320 51,987 58,644
Maryland - 0 - - - 0 - - - 768 29,568 30,159
North Carolina - 11 153 179 - 0 - - - 1,332 47,012 60,594
South Carolina - 0 - - - 0 - - 623 1,007 34,642 31,749
Virginia 1 24 156 95 - 0 - - 763 1,992 38,220 36,972
West Virginia - 0 - - - 0 - - 1 127 4,757 5,091
East South Central - 1 - 43 - 0 - - 1,012 3,702 101,500 97,406
Alabama N NC N N - 0 - - 658 748 29,082 25,012
Kentucky - 0 - - - 0 - - 92 2,549 16,794 14,900
Mississippi - 1 - 43 - 0 - - 203 517 19,578 22,471
Tennessee - 0 - - - 0 - - 59 1,162 36,046 35,023
West South Central - 0 - - - 0 - - 414 4,621 170,730 190,951
Arkansas - 0 - - - 0 - - 128 409 14,466 15,017
Louisiana - 0 - - - 0 - - 239 757 30,425 30,606
Oklahoma - 0 - - - 0 - - 46 466 11,297 19,847
Texas - 0 - - - 0 - - 1 3,113 114,542 125,481
Mountain 1 7 63 43 - 0 - - 1,418 2,854 111,385 105,321
Arizona - 7 46 28 - 0 - - 412 911 38,039 34,724
Colorado - 0 - - - 0 - - 612 742 26,102 24,290
Idaho - 0 - - - 0 - - 109 212 5,756 5,751
Montana - 0 - - - 0 - - 49 109 3,693 3,832
Nevada - 1 3 5 - 0 - - - 563 14,255 13,903
New Mexico - 0 - - - 0 - - 35 283 11,066 11,345
Utah 1 3 14 8 - 0 - - 169 261 10,578 9,649
Wyoming - 0 - 2 - 0 - - 32 77 1,896 1,827
Pacific 4 41 310 124 - 1 5 - 2,649 4,815 211,097 222,745
Alaska - 0 - - - 0 - - - 140 4,634 4,778
California 4 16 298 120 - 1 1 - 2,053 3,966 176,880 167,356
Hawaii - 1 1 4 - 0 - - - 140 - 6,541
Oregon - 2 11 - - 0 - - 314 378 14,818 14,765
Washington - 39 - - - 1 4 - 282 590 14,765 29,305
U.S. Territories - 0 - 8 - 0 - - - 107 1,497 3,882
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 0 - -
Puerto Rico - 0 - 8 - 0 - - - 107 1,497 3,882
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - 1 22 111 21
Total 8 70 1,433 1,706 - 1 6 - 13,190 33,803 1,380,084 1,467,739
  • 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.
  • Max: Maximum — Maximum case count during the previous 52 weeks.
  • * Case counts for reporting year 2021 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).
  • § Reporting jurisdictions were informed CDC could receive data for this condition in August 2019. Please note there will be a delay in reporting of case notifications for this condition to CDC.
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 as numbered tables. 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.