Notice: For data on COVID-19 in the United States, please see https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html

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 December 12, 2020 (Week 50)
Reporting Area Severe acute respiratory syndrome-associated coronavirus disease Shiga toxin-producing Escherichia coli (STEC) Shigellosis
Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †
U.S. Residents, excluding U.S. Territories - 3 - - 39 794 6,789 15,931 22 980 7,082 17,197
New England - 2 - - 1 12 238 377 1 13 216 494
Connecticut - 0 - - - 5 70 130 - 5 46 121
Maine - 0 - - - 3 11 24 - 2 3 12
Massachusetts - 2 - - 1 6 73 96 1 8 123 244
New Hampshire - 0 - - - 2 20 33 - 2 6 21
Rhode Island - 0 - - - 3 26 47 - 4 31 84
Vermont - 0 - - - 4 38 47 - 3 7 12
Middle Atlantic - 0 - - 9 53 960 1,722 8 47 874 2,174
New Jersey - 0 - - - 4 1 55 - 10 81 513
New York (excluding New York City) - 0 - - 8 36 356 513 1 12 152 321
New York City - 0 - - - 20 350 729 7 28 488 1,088
Pennsylvania - 0 - - 1 13 253 425 - 11 153 252
East North Central - 0 - - - 41 962 2,155 - 31 501 1,384
Illinois - 0 - - - 14 235 545 - 15 184 455
Indiana - 0 - - - 7 102 217 - 3 15 137
Michigan - 0 - - - 5 24 284 - 6 47 208
Ohio - 0 - - - 21 344 577 - 10 194 422
Wisconsin - 0 - - - 14 257 532 - 6 61 162
West North Central - 2 - - - 44 797 2,296 - 17 151 640
Iowa - 0 - - - 23 312 589 - 5 53 99
Kansas - 0 - - - 8 110 225 - 1 11 54
Minnesota - 0 - - - 6 - 691 - 10 - 285
Missouri - 2 - - - 10 194 382 - 5 37 116
Nebraska - 0 - - - 11 145 198 - 4 36 65
North Dakota - 2 - - - 4 33 78 - 6 10 13
South Dakota - 0 - - - 3 3 133 - 1 4 8
South Atlantic - 0 - - 6 45 966 2,439 - 76 1,024 2,938
Delaware - 0 - - - 3 18 34 - 2 7 29
District of Columbia - 0 - - - 1 4 12 - 3 24 74
Florida - 0 - - - 24 285 756 - 34 374 1,366
Georgia - 0 - - - 12 188 467 - 19 241 579
Maryland - 0 - - - 6 91 238 - 6 93 190
North Carolina - 0 - - - 6 77 378 - 14 109 314
South Carolina - 0 - - 1 5 73 112 - 4 62 126
Virginia - 0 - - 5 14 194 377 - 22 110 239
West Virginia - 0 - - - 4 36 65 - 1 4 21
East South Central - 0 - - 3 20 359 968 - 44 508 850
Alabama - 0 - - 2 8 95 133 - 35 336 376
Kentucky - 0 - - 1 10 40 368 - 3 22 122
Mississippi - 0 - - - 3 12 93 - 5 30 175
Tennessee - 0 - - - 13 212 374 - 7 120 177
West South Central - 0 - - 17 129 545 1,590 7 420 1,387 4,198
Arkansas - 0 - - 3 7 59 131 - 5 30 156
Louisiana - 0 - - - 4 37 84 - 16 137 530
Oklahoma - 0 - - 4 27 100 206 - 48 119 113
Texas - 0 - - 10 95 349 1,169 7 355 1,101 3,399
Mountain - 2 - - 3 32 807 1,417 4 25 534 1,005
Arizona - 0 - - 2 7 176 287 1 11 231 416
Colorado - 2 - - 1 13 231 482 3 12 188 262
Idaho - 0 - - - 9 118 204 - 2 2 47
Montana - 0 - - - 5 58 66 - 2 9 11
Nevada - 0 - - - 3 13 52 - 4 13 81
New Mexico - 0 - - - 4 28 97 - 5 48 125
Utah - 0 - - - 15 162 180 - 3 43 62
Wyoming - 0 - - - 3 21 49 - 0 - 1
Pacific - 1 - - - 489 1,155 2,967 2 378 1,887 3,514
Alaska - 0 - - - 2 4 6 - 1 1 6
California - 0 - - - 43 901 2,613 2 76 1,519 3,271
Hawaii - 0 - - - 2 6 3 - 3 25 79
Oregon - 1 - - - 11 198 345 - 23 169 158
Washington - 0 - - - 465 46 - - 314 173 -
U.S. Territories - 0 - - - 0 - 1 - 1 - 36
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 1 - 30
Puerto Rico - 0 - - - 0 - 1 - 0 - 6
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 2 3 -
Total - 3 - - 39 794 6,789 15,932 22 980 7,085 17,233
  • 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 2020 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://wwwn.cdc.gov/nndss/document/Users_guide_WONDER_tables_cleared_final.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 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://wwwn.cdc.gov/nndss/conditions/. 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://wwwn.cdc.gov/nndss/infectious-tables.html.
Acknowledgement:
  • 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.