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 1ee. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending January 1, 2022 (Week 52)
Reporting Area Salmonella Paratyphi infection § Salmonella Typhi infection ¶ Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi 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 - 4 52 73 1 15 161 168 145 1,685 37,767 43,772
New England - 2 6 5 - 2 10 8 6 82 1,702 1,522
Connecticut - 2 3 2 - 2 6 3 - 19 350 349
Maine - 0 - - - 0 - - - 10 127 111
Massachusetts - 2 3 3 - 1 4 4 5 44 910 725
New Hampshire - 0 - - - 0 - 1 - 10 118 149
Rhode Island - 0 - - - 0 - - - 8 132 111
Vermont - 0 - - - 0 - - 1 5 65 77
Middle Atlantic - 3 13 9 1 3 27 45 38 132 3,755 4,482
New Jersey - 0 - - - 0 - 8 - 12 16 1,045
New York (excluding New York City) - 1 5 3 - 3 8 5 23 59 1,256 1,151
New York City - 1 4 5 - 2 11 21 8 52 1,131 932
Pennsylvania - 2 4 1 1 1 8 11 7 53 1,352 1,354
East North Central - 2 5 15 - 2 14 10 1 176 3,808 4,769
Illinois - 1 3 11 - 2 10 5 - 121 1,638 1,325
Indiana - 0 - - - 0 - 1 - 10 81 676
Michigan - 0 - 3 - 0 - 1 - 6 24 901
Ohio - 1 2 - - 2 4 3 - 43 1,188 1,169
Wisconsin - 0 - 1 - 0 - - 1 40 877 698
West North Central - 1 1 4 - 1 7 7 9 95 2,498 3,108
Iowa - 1 1 3 - 0 - - 3 32 650 608
Kansas - 0 - - - 1 2 - 3 23 415 481
Minnesota - 0 - 1 - 0 - 3 - 10 - 704
Missouri - 0 - - - 1 4 4 - 35 778 786
Nebraska - 0 - - - 1 1 - 3 19 352 261
North Dakota - 0 - - - 0 - - - 7 97 90
South Dakota - 0 - - - 0 - - - 14 206 178
South Atlantic - 1 6 7 - 2 26 27 9 408 11,904 14,693
Delaware - 0 - 1 - 1 3 1 - 12 173 193
District of Columbia - 0 - - - 0 - 2 - 2 11 33
Florida - 1 2 1 - 1 4 2 - 273 5,361 6,465
Georgia - 0 - - - 0 - 1 - 78 1,961 2,051
Maryland - 1 2 3 - 1 11 7 - 40 693 695
North Carolina - 0 - - - 1 1 4 - 66 1,027 2,332
South Carolina - 0 - - - 1 1 2 5 77 1,504 1,698
Virginia - 1 2 2 - 2 6 8 4 50 1,098 976
West Virginia - 0 - - - 0 - - - 6 76 250
East South Central - 1 2 2 - 2 8 3 - 102 2,353 3,285
Alabama - 1 1 1 - 2 6 1 - 38 836 872
Kentucky - 0 - - - 1 1 1 - 25 414 655
Mississippi - 0 - - - 0 - - - 26 294 928
Tennessee - 1 1 1 - 1 1 1 - 36 809 830
West South Central - 1 2 6 - 2 10 11 29 363 5,226 5,266
Arkansas - 1 1 1 - 1 1 1 3 26 516 449
Louisiana - 1 1 1 - 0 - - 17 49 828 1,306
Oklahoma - 0 - - - 1 1 2 8 77 784 759
Texas - 0 - 4 - 2 8 8 1 280 3,098 2,752
Mountain - 2 7 5 - 2 18 6 27 87 2,740 2,363
Arizona - 0 - 2 - 2 8 3 14 32 870 629
Colorado - 0 - 1 - 1 2 3 11 41 966 590
Idaho - 1 5 - - 0 - - - 6 73 206
Montana - 0 - - - 0 - - - 6 69 187
Nevada - 0 - 2 - 1 1 - - 4 54 51
New Mexico - 0 - - - 1 3 - - 15 312 248
Utah - 1 2 - - 2 4 - 2 23 326 348
Wyoming - 0 - - - 0 - - - 8 70 104
Pacific - 2 10 20 - 11 41 51 26 742 3,781 4,284
Alaska - 1 1 2 - 0 - - - 2 16 57
California - 2 5 18 - 4 39 49 17 102 2,748 3,637
Hawaii - 1 3 - - 1 - 1 - 8 96 131
Oregon - 0 - - - 1 1 1 4 12 324 459
Washington - 2 1 - - 10 1 - 5 703 597 -
U.S. Territories - 3 7 1 - 2 3 - - 32 396 324
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 2 4 - - 0 - - - 1 2 3
Guam - 3 3 1 - 2 3 - - 2 9 4
Puerto Rico - 0 - - - 0 - - - 32 382 313
U.S. Virgin Islands - 0 - - - 0 - - - 1 3 4
Non-U.S. Residents - 0 - - - 1 1 - - 2 2 2
Total - 7 59 74 1 15 165 168 145 1,685 38,165 44,098
  • 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).
  • § In previous years, cases were reported as Salmonellosis. Beginning in January 2019, cases began to be reported as Salmonella Paratyphi infection.
  • ¶ In previous years, cases were reported as typhoid fever. Beginning in January 2019, cases began to be reported as Salmonella Typhi infection.
  • ** In previous years, cases were reported as Salmonellosis (excluding paratyphoid fever and typhoid fever). Beginning in January 2019, cases began to be reported as Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection).
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.