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

Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending October 28, 2023 (Week 43)
Reporting Area Legionellosis
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 72 247 5,664 6,366
New England 4 28 314 383
Connecticut - 3 12 97
Maine 1 5 19 20
Massachusetts 2 18 193 168
New Hampshire - 4 33 40
Rhode Island 1 6 41 46
Vermont - 2 16 12
Middle Atlantic 18 63 983 1,227
New Jersey - 8 45 193
New York (excluding New York City) 14 32 435 371
New York City - 20 233 322
Pennsylvania 4 19 270 341
East North Central 19 92 1,472 1,524
Illinois - 41 338 330
Indiana 2 10 159 217
Michigan 1 25 323 333
Ohio 16 45 534 441
Wisconsin - 10 118 203
West North Central 5 17 322 349
Iowa - 3 36 39
Kansas - 4 37 35
Minnesota 3 7 101 88
Missouri 2 9 107 137
Nebraska - 3 31 27
North Dakota - 1 4 3
South Dakota - 2 6 20
South Atlantic 16 41 1,047 1,265
Delaware - 2 22 13
District of Columbia - 3 18 24
Florida 5 19 370 455
Georgia - 11 131 140
Maryland 3 10 106 172
North Carolina - 9 129 148
South Carolina 2 9 111 79
Virginia 6 9 129 168
West Virginia - 3 31 66
East South Central 1 17 253 319
Alabama 1 5 57 58
Kentucky - 7 50 93
Mississippi - 3 34 35
Tennessee - 11 112 133
West South Central 4 40 354 394
Arkansas - 2 21 44
Louisiana - 4 47 58
Oklahoma 4 27 11 10
Texas - 16 275 282
Mountain 2 17 331 332
Arizona 1 8 98 109
Colorado 1 10 112 89
Idaho - 4 21 15
Montana - 2 12 10
Nevada - 2 25 24
New Mexico - 3 22 32
Utah - 3 32 44
Wyoming - 2 9 9
Pacific 3 30 588 573
Alaska - 1 4 2
California - 26 423 467
Hawaii - 2 15 13
Oregon 2 7 50 39
Washington 1 5 96 52
U.S. Territories - 1 5 6
American Samoa N NC N N
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 1 5 3
U.S. Virgin Islands - 0 - 3
Non-U.S. Residents - 0 - -
Total 72 247 5,669 6,372
  • 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 years 2022 and 2023 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/data-statistics/readers-guides/.
  • † 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 in alphabetical order by condition. 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.