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 14, 2024 (Week 50)
Reporting Area Giardiasis
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 131 407 14,659 15,623
New England 15 49 1,223 1,037
Connecticut - 13 210 181
Maine - 9 123 145
Massachusetts 15 30 711 563
New Hampshire - 10 92 86
Rhode Island - 7 87 62
Vermont N NC N N
Middle Atlantic 38 101 3,241 3,342
New Jersey - 15 42 459
New York (excluding New York City) 11 48 1,170 944
New York City 23 43 1,427 1,310
Pennsylvania 4 24 602 629
East North Central 3 105 1,843 1,609
Illinois N NC N N
Indiana 1 11 222 181
Michigan - 26 498 492
Ohio - 39 546 430
Wisconsin 2 37 577 506
West North Central 3 27 795 1,209
Iowa - 9 179 192
Kansas - 7 116 133
Minnesota - 11 - 428
Missouri 1 13 293 259
Nebraska 2 6 110 88
North Dakota - 2 31 31
South Dakota - 4 66 78
South Atlantic 31 68 2,386 2,688
Delaware - 5 36 39
District of Columbia - 4 6 96
Florida 18 45 1,212 1,273
Georgia 1 14 334 528
Maryland 5 15 264 218
North Carolina N NC N N
South Carolina 2 11 215 154
Virginia 5 9 216 296
West Virginia - 6 103 84
East South Central - 14 313 415
Alabama - 10 69 210
Kentucky - 10 244 205
Mississippi N NC N N
Tennessee N NC N N
West South Central 1 22 438 395
Arkansas 1 11 146 157
Louisiana - 15 292 238
Oklahoma N NC N N
Texas N NC N N
Mountain 4 43 1,017 1,522
Arizona 1 11 184 151
Colorado - 18 192 672
Idaho 1 7 111 130
Montana - 6 84 92
Nevada - 4 86 100
New Mexico 1 6 87 88
Utah 1 16 266 244
Wyoming - 1 7 45
Pacific 36 106 3,403 3,406
Alaska 2 9 100 62
California 29 84 2,657 2,668
Hawaii - 4 36 46
Oregon 5 18 327 387
Washington - 11 283 243
U.S. Territories - 3 17 24
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 1 1 -
Puerto Rico - 2 14 18
U.S. Virgin Islands - 1 2 6
Non-U.S. Residents 1 5 108 6
Total 132 411 14,784 15,653
  • 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.