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 28, 2024 (Week 52)
Reporting Area Giardiasis
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 84 408 15,024 16,178
New England 4 49 1,250 1,072
Connecticut - 13 210 189
Maine 1 9 129 149
Massachusetts 2 30 727 582
New Hampshire 1 10 97 87
Rhode Island - 7 87 65
Vermont N NC N N
Middle Atlantic 29 101 3,347 3,472
New Jersey - 11 42 483
New York (excluding New York City) 23 48 1,212 992
New York City 5 43 1,459 1,348
Pennsylvania 1 24 634 649
East North Central 23 105 1,892 1,669
Illinois N NC N N
Indiana 2 11 234 192
Michigan 2 26 506 508
Ohio 19 39 565 453
Wisconsin - 37 587 516
West North Central 3 27 809 1,246
Iowa - 9 183 201
Kansas 1 7 120 138
Minnesota - 6 - 444
Missouri 1 13 294 263
Nebraska 1 5 113 90
North Dakota - 2 32 31
South Dakota - 4 67 79
South Atlantic 9 68 2,435 2,786
Delaware - 5 37 41
District of Columbia - 4 6 102
Florida - 45 1,237 1,311
Georgia - 14 334 553
Maryland 5 15 275 224
North Carolina N NC N N
South Carolina 1 11 220 164
Virginia 3 9 222 307
West Virginia - 6 104 84
East South Central - 14 313 429
Alabama - 10 69 216
Kentucky - 10 244 213
Mississippi N NC N N
Tennessee N NC N N
West South Central - 22 440 421
Arkansas - 11 146 164
Louisiana - 15 294 257
Oklahoma N NC N N
Texas N NC N N
Mountain 3 43 1,039 1,571
Arizona 1 11 189 160
Colorado - 18 192 690
Idaho - 7 111 135
Montana - 6 84 94
Nevada 1 4 89 102
New Mexico - 6 88 91
Utah 1 16 279 253
Wyoming - 1 7 46
Pacific 13 107 3,499 3,512
Alaska 1 9 102 62
California 9 84 2,724 2,757
Hawaii - 4 41 46
Oregon 3 18 337 397
Washington - 12 295 250
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 5 114 7
Total 85 412 15,155 16,209
  • 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.