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

TABLE 1p. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 12, 2020 (Week 50)
Reporting Area Hemolytic uremic syndrome post-diarrheal Hepatitis A, acute Hepatitis B, acute
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 - 13 155 371 21 491 8,079 18,103 5 135 1,221 2,999
New England - 1 1 4 1 12 225 583 - 4 54 108
Connecticut - 1 - 1 - 2 14 16 - 0 - 3
Maine - 0 - 1 1 12 133 42 - 3 37 55
Massachusetts - 1 1 1 - 4 34 203 - 3 15 36
New Hampshire - 0 - 1 - 3 26 304 - 0 - 5
Rhode Island - 0 - - - 2 3 6 U NC U U
Vermont - 0 - - - 2 15 12 - 1 2 9
Middle Atlantic - 4 9 16 4 35 443 1,631 2 9 100 242
New Jersey - 1 1 - - 12 54 591 - 3 - 76
New York (excluding New York City) - 2 5 5 1 14 221 262 - 4 21 45
New York City - 0 - 3 2 11 38 98 2 4 23 32
Pennsylvania - 4 3 8 1 14 130 680 - 4 56 89
East North Central - 3 7 35 - 37 484 3,424 - 17 182 582
Illinois - 1 3 8 - 5 64 178 - 2 15 43
Indiana - 1 1 5 - 15 121 1,378 - 6 27 164
Michigan - 1 3 8 - 2 16 69 - 4 26 62
Ohio - 1 - 5 - 20 272 1,770 - 9 107 305
Wisconsin - 1 - 9 - 2 11 29 - 2 7 8
West North Central - 3 20 53 - 24 520 457 - 4 32 85
Iowa - 1 2 7 - 2 5 9 - 3 13 21
Kansas - 1 2 9 - 16 148 10 - 0 - 11
Minnesota - 0 - 11 - 7 67 70 - 1 2 16
Missouri - 3 15 14 - 21 294 341 - 3 14 32
Nebraska - 1 1 3 - 1 4 15 - 0 - -
North Dakota - 0 - 4 - 1 1 4 - 1 3 -
South Dakota - 0 - 5 - 1 1 8 - 0 - 5
South Atlantic - 2 11 34 8 137 3,228 5,744 - 42 344 1,056
Delaware - 0 - - - 3 27 33 - 1 6 12
District of Columbia - 0 - - - 2 1 11 U NC U U
Florida - 1 2 3 - 68 833 3,276 - 23 60 555
Georgia - 1 2 10 7 26 504 814 - 6 76 110
Maryland - 1 4 3 - 14 225 82 - 4 27 39
North Carolina - 0 - 6 - 22 349 144 - 5 86 181
South Carolina - 1 1 - - 49 1,030 645 - 3 30 41
Virginia - 1 2 9 1 17 181 289 - 6 38 49
West Virginia - 1 - 3 - 14 78 450 - 4 21 69
East South Central - 3 20 37 - 46 1,428 3,779 1 12 291 502
Alabama - 0 - 6 - 29 861 222 - 3 50 74
Kentucky - 1 4 16 - 4 52 1,314 1 7 95 182
Mississippi - 0 - - - 13 269 117 - 4 30 48
Tennessee - 3 16 15 - 21 246 2,126 - 7 116 198
West South Central - 6 9 33 6 49 1,117 997 2 11 102 186
Arkansas - 1 5 7 6 30 303 196 2 5 49 37
Louisiana - 1 1 2 - 41 703 647 - 3 20 70
Oklahoma - 0 - 8 - 2 2 12 - 2 6 16
Texas - 5 3 16 - 14 109 142 - 6 27 63
Mountain - 2 12 32 - 13 130 1,223 - 4 31 109
Arizona - 1 6 7 - 7 43 582 - 2 15 27
Colorado - 0 - 13 - 8 54 320 - 1 3 17
Idaho - 1 - 4 - 3 4 74 - 1 - 6
Montana - 0 - - - 1 6 13 - 2 5 1
Nevada - 1 1 - - 2 7 100 - 0 - 23
New Mexico - 0 - 1 - 2 4 102 - 0 - 4
Utah - 1 5 7 - 2 11 20 - 2 7 28
Wyoming - 0 - - - 1 1 12 - 1 1 3
Pacific - 5 66 127 2 193 504 265 - 58 85 129
Alaska - 0 - 1 - 0 - 2 - 1 3 6
California - 4 63 119 - 20 194 235 - 5 43 106
Hawaii - 0 - - - 1 6 1 - 2 9 1
Oregon - 1 3 7 - 3 27 27 - 3 15 16
Washington N NC N N 2 181 277 - - 52 15 -
U.S. Territories - 0 - - - 17 10 274 - 0 - 5
American Samoa N NC N N - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 17 - 226 - 0 - -
Puerto Rico N NC N N - 3 10 48 - 0 - 5
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 1 6 - - 1 1 -
Total - 13 155 371 21 493 8,095 18,377 5 135 1,222 3,004
  • 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.