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.TABLE 1ee. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 18, 2021 (Week 50) column labels (in same order that data fields appears in each record below): Reporting Area Salmonella Paratyphi infection §; Current week Salmonella Paratyphi infection §; Previous 52 weeks Max † Salmonella Paratyphi infection §; Cum YTD 2021 † Salmonella Paratyphi infection §; Cum YTD 2020 † Salmonella Typhi infection ¶; Current week Salmonella Typhi infection ¶; Previous 52 weeks Max † Salmonella Typhi infection ¶; Cum YTD 2021 † Salmonella Typhi infection ¶; Cum YTD 2020 † Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection) **; Current week Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection) **; Previous 52 weeks Max † Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection) **; Cum YTD 2021 † Salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection) **; Cum YTD 2020 † tab delimited data: U.S. Residents, excluding U.S. Territories - 4 49 72 - 15 156 163 229 1,685 37,217 42,549 New England - 2 6 5 - 2 10 8 13 83 1,679 1,495 Connecticut - 2 3 2 - 2 6 3 - 19 350 339 Maine - 0 - - - 0 - - - 10 127 110 Massachusetts - 2 3 3 - 1 4 4 12 45 889 714 New Hampshire - 0 - - - 0 - 1 - 10 118 144 Rhode Island - 0 - - - 0 - - 1 8 130 111 Vermont - 0 - - - 0 - - - 6 65 77 Middle Atlantic - 1 11 9 - 3 26 44 37 132 3,663 4,395 New Jersey - 0 - - - 0 - 8 - 12 16 1,035 New York (excluding New York City) - 1 5 3 - 3 8 5 16 59 1,224 1,125 New York City - 1 4 5 - 2 11 20 15 52 1,109 905 Pennsylvania - 1 2 1 - 1 7 11 6 52 1,314 1,330 East North Central - 2 5 15 - 2 14 10 3 175 3,764 4,674 Illinois - 1 3 11 - 2 10 5 - 120 1,636 1,308 Indiana - 0 - - - 0 - 1 - 13 81 654 Michigan - 0 - 3 - 0 - 1 - 9 24 884 Ohio - 1 2 - - 2 4 3 - 43 1,165 1,143 Wisconsin - 0 - 1 - 0 - - 3 40 858 685 West North Central - 1 1 4 - 1 7 5 9 92 2,441 3,030 Iowa - 1 1 3 - 0 - - 2 32 631 591 Kansas - 0 - - - 1 2 - - 23 397 463 Minnesota - 0 - 1 - 1 - 2 - 10 - 690 Missouri - 0 - - - 1 4 3 5 35 770 767 Nebraska - 0 - - - 1 1 - 2 19 341 256 North Dakota - 0 - - - 0 - - - 7 96 88 South Dakota - 0 - - - 0 - - - 14 206 175 South Atlantic - 1 6 7 - 2 26 26 51 408 11,832 14,278 Delaware - 0 - 1 - 1 3 1 - 12 169 187 District of Columbia - 0 - - - 0 - 2 - 2 11 33 Florida - 1 2 1 - 1 4 2 21 273 5,361 6,236 Georgia - 0 - - - 0 - 1 8 78 1,921 2,014 Maryland - 1 2 3 - 1 11 6 - 40 693 679 North Carolina - 0 - - - 1 1 4 - 66 1,027 2,286 South Carolina - 0 - - - 1 1 2 11 76 1,489 1,668 Virginia - 1 2 2 - 2 6 8 11 50 1,085 926 West Virginia - 0 - - - 0 - - - 6 76 249 East South Central - 1 2 2 - 2 8 2 9 103 2,350 3,210 Alabama - 1 1 1 - 2 6 - 7 38 825 850 Kentucky - 0 - - - 1 1 1 - 25 416 636 Mississippi - 0 - - - 0 - - - 26 293 918 Tennessee - 1 1 1 - 1 1 1 2 36 816 806 West South Central - 1 2 5 - 2 10 11 62 363 5,153 4,944 Arkansas - 1 1 - - 1 1 1 12 26 502 417 Louisiana - 1 1 1 - 0 - - 9 51 802 1,272 Oklahoma - 0 - - - 1 1 2 6 77 768 753 Texas - 0 - 4 - 2 8 8 35 280 3,081 2,502 Mountain - 2 6 5 - 3 17 6 21 87 2,666 2,313 Arizona - 0 - 2 - 2 8 3 11 32 843 611 Colorado - 0 - 1 - 1 2 3 7 40 938 572 Idaho - 1 5 - - 0 - - - 6 73 201 Montana - 0 - - - 0 - - - 6 69 187 Nevada - 0 - 2 - 1 1 - - 4 52 51 New Mexico - 0 - - - 1 2 - 1 15 307 244 Utah - 1 1 - - 2 4 - 2 23 315 343 Wyoming - 0 - - - 0 - - - 8 69 104 Pacific - 2 10 20 - 11 38 51 24 742 3,669 4,210 Alaska - 1 1 2 - 0 - - - 2 16 56 California - 2 5 18 - 4 36 49 20 102 2,660 3,575 Hawaii - 1 3 - - 1 - 1 - 8 97 127 Oregon - 0 - - - 1 1 1 1 12 309 452 Washington - 2 1 - - 10 1 - 3 703 587 - U.S. Territories - 3 7 1 - 2 3 - - 32 396 310 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 - - - 32 382 299 U.S. Virgin Islands - 0 - - - 0 - - - 1 3 4 Non-U.S. Residents - 0 - - - 1 1 - - 2 2 2 Total - 7 56 73 - 15 160 163 229 1,685 37,615 42,861 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. 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 https://www.cdc.gov/nndss/docs/Readers-Guide-WONDER-Tables-20210421-508.pdf, Guide to Interpreting Provisional and Finalized NNDSS Data. Weekly tables since 1996 are available on https://wonder.cdc.gov/nndss/nndss_weekly_tables_menu.asp, CDC WONDER. Weekly tables since 2014 are available on https://data.cdc.gov/browse?q=NNDSS&sortBy=newest&utf8=%E2%9C%93, Data.CDC.gov. Weekly tables for 1952–2017 published in the Morbidity and Mortality Weekly Reports (MMWR) are available at https://stacks.cdc.gov/mmwr, CDC Stacks MMWR, and weekly tables starting in 2018 are available at https://stacks.cdc.gov/nndss, 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 https://wonder.cdc.gov/nndss/NTR.html, 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/, 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, 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. https://www.cdc.gov/nndss/, National Notifiable Diseases Surveillance System Provided by https://wonder.cdc.gov, CDC WONDER