Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 23, 2023 (Week 51) column labels (in same order that data fields appears in each record below): Reporting Area Legionellosis; Current week Legionellosis; Previous 52 weeks Max † Legionellosis; Cum YTD 2023 † Legionellosis; Cum YTD 2022 † tab delimited data: U.S. Residents, excluding U.S. Territories 28 251 6,731 7,372 New England 3 28 373 458 Connecticut 1 3 14 113 Maine - 5 21 25 Massachusetts - 18 233 206 New Hampshire - 4 37 44 Rhode Island 2 6 48 56 Vermont - 2 20 14 Middle Atlantic 11 66 1,148 1,407 New Jersey - 6 70 229 New York (excluding New York City) 8 34 503 436 New York City 1 22 276 360 Pennsylvania 2 19 299 382 East North Central 6 93 1,702 1,723 Illinois 1 41 397 377 Indiana - 19 197 252 Michigan - 26 375 366 Ohio 5 45 591 502 Wisconsin - 10 142 226 West North Central 2 17 395 406 Iowa - 3 49 44 Kansas - 4 41 39 Minnesota 1 6 133 109 Missouri - 9 127 154 Nebraska 1 3 35 32 North Dakota - 1 4 4 South Dakota - 2 6 24 South Atlantic 3 42 1,293 1,482 Delaware - 2 26 18 District of Columbia - 3 24 31 Florida - 19 422 526 Georgia - 11 169 161 Maryland 2 8 144 201 North Carolina - 9 157 175 South Carolina 1 9 150 108 Virginia - 9 159 189 West Virginia - 3 42 73 East South Central 1 17 276 357 Alabama 1 5 62 64 Kentucky - 7 58 102 Mississippi - 3 37 41 Tennessee - 11 119 150 West South Central - 40 465 459 Arkansas - 2 24 51 Louisiana - 4 56 63 Oklahoma - 27 11 11 Texas - 16 374 334 Mountain 1 19 383 370 Arizona - 8 115 121 Colorado 1 10 124 102 Idaho - 4 26 16 Montana - 2 14 11 Nevada - 2 25 30 New Mexico - 4 30 32 Utah - 3 40 49 Wyoming - 2 9 9 Pacific 1 30 696 710 Alaska - 1 4 2 California - 26 496 579 Hawaii - 2 18 15 Oregon 1 7 55 52 Washington - 6 123 62 U.S. Territories - 1 5 7 American Samoa N NC N N Commonwealth of Northern Mariana Islands - 0 - - Guam - 0 - - Puerto Rico - 1 5 4 U.S. Virgin Islands - 0 - 3 Non-U.S. Residents - 1 1 - Total 28 251 6,737 7,379 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. * Case counts for reporting year 2023 are provisional and subject to change. For further information on interpretation of these data, see https://www.cdc.gov/nndss/data-statistics/readers-guides/ 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/data-statistics/readers-guides/, 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