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 25, 2021 (Week 51)
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 3 70 1,641 1,749 - 1 6 - 6,284 32,152 1,395,093 1,529,149
New England - 3 7 78 - 0 - - 67 958 36,901 48,129
Connecticut - 0 - - - 0 - - - 262 92 12,452
Maine - 0 - - - 0 - - 46 98 3,037 3,330
Massachusetts - 0 - - - 0 - - - 578 25,257 24,196
New Hampshire - 0 - 13 - 0 - - - 92 2,894 2,862
Rhode Island - 3 7 64 - 0 - - - 465 4,739 4,202
Vermont - 0 - 1 - 0 - - 21 34 882 1,087
Middle Atlantic 2 13 399 404 - 0 - - 1,312 3,504 134,379 177,075
New Jersey - 0 - - - 0 - - 283 797 29,887 30,728
New York (excluding New York City) - 0 - - - 0 - - 573 1,004 37,854 40,516
New York City - 8 63 80 - 0 - - 456 1,398 60,636 55,004
Pennsylvania 2 13 336 324 - 0 - - - 766 6,002 50,827
East North Central - 14 252 416 - 1 1 - 404 5,089 191,278 225,559
Illinois - 0 - - - 0 - - - 1,506 47,663 66,637
Indiana - 11 150 204 - 0 - - - 827 29,662 32,136
Michigan - 7 92 184 - 1 1 - 83 994 33,988 43,175
Ohio - 0 - - - 0 - - - 1,257 52,816 57,835
Wisconsin - 2 10 28 - 0 - - 321 656 27,149 25,776
West North Central - 2 19 44 - 0 - - 290 2,156 86,332 96,454
Iowa - 0 - - - 0 - - - 329 12,544 14,665
Kansas - 0 - - - 0 - - 27 230 5,173 14,182
Minnesota - 1 - 29 - 0 - - - 516 20,971 21,460
Missouri - 0 - - - 0 - - 136 1,248 30,575 30,097
Nebraska - 0 - - - 0 - - 125 242 9,246 8,666
North Dakota - 2 16 11 - 0 - - 1 96 3,585 3,459
South Dakota - 1 3 4 - 0 - - 1 110 4,238 3,925
South Atlantic - 29 419 589 - 0 - - 2,427 7,575 321,675 337,867
Delaware - 3 31 25 - 0 - - - 214 4,735 4,593
District of Columbia - 0 - - - 0 - - - 169 6,326 3,094
Florida N NC N N - 0 - - 990 2,238 101,240 96,538
Georgia - 10 78 280 - 0 - - - 1,320 51,987 60,945
Maryland - 0 - - - 0 - - - 768 29,568 31,468
North Carolina - 11 153 187 - 0 - - - 1,332 47,012 63,119
South Carolina - 0 - - - 0 - - 608 1,007 35,930 33,036
Virginia - 24 157 97 - 0 - - 804 945 39,900 39,779
West Virginia - 0 - - - 0 - - 25 127 4,977 5,295
East South Central - 0 - 44 - 0 - - 556 3,702 103,920 102,346
Alabama N NC N N - 0 - - 396 748 29,995 26,290
Kentucky - 0 - - - 0 - - - 2,549 16,794 15,722
Mississippi - 0 - 44 - 0 - - 160 502 20,404 23,368
Tennessee - 0 - - - 0 - - - 1,162 36,727 36,966
West South Central - 0 - - - 0 - - 39 4,462 187,722 199,974
Arkansas - 0 - - - 0 - - - 409 14,785 15,674
Louisiana - 0 - - - 0 - - - 757 31,038 32,010
Oklahoma - 0 - - - 0 - - 39 301 11,769 20,691
Texas - 0 - - - 0 - - - 3,155 130,130 131,599
Mountain 1 15 221 43 - 0 - - 496 2,854 115,069 109,843
Arizona 1 15 201 28 - 0 - - 301 911 40,154 36,262
Colorado - 0 - - - 0 - - - 742 26,102 25,364
Idaho - 0 - - - 0 - - 35 212 5,927 6,022
Montana - 0 - - - 0 - - - 109 3,785 3,994
Nevada - 1 5 5 - 0 - - 2 563 14,694 14,374
New Mexico - 0 - - - 0 - - 22 283 11,512 11,780
Utah - 3 15 8 - 0 - - 119 259 10,927 10,147
Wyoming - 0 - 2 - 0 - - 17 77 1,968 1,900
Pacific - 41 324 131 - 1 5 - 693 4,816 217,817 231,902
Alaska - 0 - - - 0 - - 1 140 4,950 4,970
California - 16 312 127 - 1 1 - 311 3,967 182,208 174,260
Hawaii - 1 1 4 - 0 - - - 103 - 6,815
Oregon - 2 11 - - 0 - - 222 378 15,359 15,378
Washington - 39 - - - 1 4 - 159 558 15,300 30,479
U.S. Territories - 0 - 8 - 0 - - - 107 1,659 3,961
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 0 - -
Puerto Rico - 0 - 8 - 0 - - - 107 1,659 3,961
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 22 111 23
Total 3 70 1,641 1,757 - 1 6 - 6,284 32,209 1,396,863 1,533,133
  • 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.