Notice: For data on COVID-19 in the United States, please see https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html
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 1ff. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending November 27, 2021 (Week 47)
Reporting Area Severe acute respiratory syndrome-associated coronavirus disease Shiga toxin-producing Escherichia coli (STEC) Shigellosis
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 - 0 - - 76 477 9,293 8,725 90 349 7,018 8,301
New England - 0 - - - 15 280 253 1 12 269 215
Connecticut - 0 - - - 7 94 72 - 6 63 48
Maine - 0 - - - 3 22 10 - 2 5 3
Massachusetts - 0 - - - 7 102 85 1 7 147 119
New Hampshire - 0 - - - 2 20 20 - 3 8 7
Rhode Island - 0 - - - 4 39 27 - 4 44 31
Vermont - 0 - - - 1 3 39 - 1 2 7
Middle Atlantic - 0 - - 8 75 1,354 996 21 59 1,263 961
New Jersey - 0 - - - 3 10 28 4 14 205 162
New York (excluding New York City) - 0 - - 8 37 555 333 - 16 190 144
New York City - 0 - - - 25 418 366 17 30 684 479
Pennsylvania - 0 - - - 23 371 269 - 9 184 176
East North Central - 0 - - 9 50 1,124 1,256 3 22 523 674
Illinois - 0 - - - 18 288 334 - 13 227 228
Indiana - 0 - - - 4 17 123 - 2 4 53
Michigan - 0 - - - 6 1 195 - 5 4 139
Ohio - 0 - - 4 18 430 336 1 11 201 189
Wisconsin - 0 - - 5 20 388 268 2 6 87 65
West North Central - 0 - - 4 56 993 1,396 1 21 189 320
Iowa - 0 - - 1 30 450 345 - 7 59 59
Kansas - 0 - - - 15 149 151 - 8 41 16
Minnesota - 0 - - - 12 - 381 - 4 - 132
Missouri - 0 - - - 8 73 240 - 3 23 55
Nebraska - 0 - - 3 12 185 142 1 4 49 36
North Dakota - 0 - - - 14 57 47 - 1 2 10
South Dakota - 0 - - - 6 79 90 - 2 15 12
South Atlantic - 0 - - 14 66 1,469 1,357 19 36 831 1,445
Delaware - 0 - - - 3 19 22 - 2 15 9
District of Columbia - 0 - - - 0 - 8 - 2 7 31
Florida - 0 - - 10 22 470 384 12 18 428 500
Georgia - 0 - - 1 18 328 260 - 10 - 413
Maryland - 0 - - 3 16 212 122 4 7 116 109
North Carolina - 0 - - - 10 107 226 - 6 73 184
South Carolina - 0 - - - 4 68 71 - 4 40 62
Virginia - 0 - - - 13 263 195 3 8 151 119
West Virginia - 0 - - - 2 2 69 - 1 1 18
East South Central - 0 - - 4 33 529 466 2 11 225 548
Alabama - 0 - - 3 7 128 94 2 5 79 344
Kentucky - 0 - - - 15 140 144 - 4 30 45
Mississippi - 0 - - - 1 1 12 - 2 7 30
Tennessee - 0 - - 1 16 260 216 - 7 109 129
West South Central - 0 - - 7 71 861 630 2 42 553 1,592
Arkansas - 0 - - 3 8 102 63 1 5 15 26
Louisiana - 0 - - - 6 63 69 - 5 66 168
Oklahoma - 0 - - 3 43 161 128 1 28 35 126
Texas - 0 - - 1 53 535 370 - 32 437 1,272
Mountain - 0 - - 9 60 1,192 962 17 32 782 626
Arizona - 0 - - 4 17 265 170 10 17 330 237
Colorado - 0 - - 4 27 444 271 3 13 202 205
Idaho - 0 - - - 5 56 141 1 4 29 18
Montana - 0 - - - 8 63 87 - 2 3 10
Nevada - 0 - - - 5 56 34 - 6 59 60
New Mexico - 0 - - - 5 37 37 1 10 100 51
Utah - 0 - - 1 12 205 172 2 4 55 44
Wyoming - 0 - - - 5 66 50 - 1 4 1
Pacific - 0 - - 21 315 1,491 1,409 24 241 2,383 1,920
Alaska - 0 - - - 1 8 8 - 1 3 1
California - 0 - - 20 46 1,180 1,202 14 70 1,957 1,708
Hawaii - 0 - - - 2 4 6 - 3 22 36
Oregon - 0 - - 1 19 272 193 1 7 107 175
Washington - 0 - - - 308 27 - 9 225 294 -
U.S. Territories - 0 - - - 1 3 6 - 2 5 5
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - 1
Guam - 0 - - - 0 - - - 1 4 4
Puerto Rico - 0 - - - 1 3 6 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 2
Total - 0 - - 76 477 9,296 8,731 90 349 7,023 8,308
  • 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).
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.