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 December 7, 2024 (Week 49)
Reporting Area Legionellosis
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 69 229 6,865 7,646
New England 3 28 321 498
Connecticut 2 6 74 117
Maine - 5 26 23
Massachusetts 1 20 174 244
New Hampshire - 3 28 40
Rhode Island - 2 13 52
Vermont - 2 6 22
Middle Atlantic 9 54 1,071 1,366
New Jersey - 5 39 262
New York (excluding New York City) 7 24 474 476
New York City 1 19 240 274
Pennsylvania 1 14 318 354
East North Central 13 71 1,577 1,847
Illinois 1 32 387 399
Indiana - 17 204 253
Michigan 1 24 331 404
Ohio 11 33 544 584
Wisconsin - 9 111 207
West North Central - 30 459 413
Iowa - 6 54 54
Kansas - 4 42 41
Minnesota - 14 162 131
Missouri - 17 140 129
Nebraska - 4 39 37
North Dakota - 1 9 4
South Dakota - 2 13 17
South Atlantic 27 64 1,530 1,375
Delaware - 4 20 28
District of Columbia - 2 19 23
Florida 21 28 606 443
Georgia - 17 232 186
Maryland 2 10 160 155
North Carolina - 12 152 175
South Carolina - 8 119 147
Virginia 4 11 160 159
West Virginia - 4 62 59
East South Central 1 21 310 344
Alabama 1 6 73 60
Kentucky - 12 139 97
Mississippi - 4 24 39
Tennessee - 9 74 148
West South Central 1 57 537 528
Arkansas - 2 32 50
Louisiana - 5 70 62
Oklahoma - 41 2 18
Texas 1 18 433 398
Mountain 9 13 308 399
Arizona 9 8 138 111
Colorado - 4 28 125
Idaho - 2 12 28
Montana - 1 7 18
Nevada - 3 33 34
New Mexico - 4 41 34
Utah - 4 48 40
Wyoming - 1 1 9
Pacific 6 25 752 876
Alaska - 2 6 4
California 4 18 546 670
Hawaii - 1 11 18
Oregon 1 6 69 61
Washington 1 7 120 123
U.S. Territories - 1 3 7
American Samoa N NC N N
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 1 3 6
U.S. Virgin Islands - 0 - 1
Non-U.S. Residents - 1 1 1
Total 69 229 6,869 7,654
  • 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 2023 and 2024 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. Office of Public Health Data, Surveillance, and Technology. 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.