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 2, 2023 (Week 48)
Reporting Area Giardiasis
Current weekPrevious 52 weeks Max †Cum YTD 2023 †Cum YTD 2022 †
U.S. Residents, excluding U.S. Territories 161 408 13,458 12,946
New England 8 33 832 986
Connecticut 4 4 51 174
Maine - 10 126 95
Massachusetts 4 23 522 584
New Hampshire - 7 77 78
Rhode Island - 5 56 55
Vermont N NC N N
Middle Atlantic 55 100 3,169 2,590
New Jersey - 15 268 337
New York (excluding New York City) 33 48 1,118 803
New York City 22 45 1,270 892
Pennsylvania - 20 513 558
East North Central 25 76 1,333 1,417
Illinois N NC N N
Indiana - 5 79 157
Michigan 2 15 405 379
Ohio 18 61 416 470
Wisconsin 5 21 433 411
West North Central 8 30 698 1,060
Iowa - 9 166 160
Kansas 1 8 126 113
Minnesota - 9 - 448
Missouri 2 12 232 174
Nebraska 4 5 74 82
North Dakota - 3 28 26
South Dakota 1 7 72 57
South Atlantic 17 72 2,323 2,245
Delaware - 3 32 27
District of Columbia - 1 2 -
Florida 8 38 1,140 1,080
Georgia - 18 439 510
Maryland 6 9 211 181
North Carolina N NC N N
South Carolina - 8 143 118
Virginia 3 13 282 241
West Virginia - 6 74 88
East South Central 2 17 384 282
Alabama 2 13 197 147
Kentucky - 10 187 135
Mississippi N NC N N
Tennessee N NC N N
West South Central 2 17 347 306
Arkansas 2 11 148 101
Louisiana - 9 199 205
Oklahoma N NC N N
Texas N NC N N
Mountain 20 61 1,357 1,118
Arizona 4 7 147 110
Colorado 13 34 610 477
Idaho 1 6 114 116
Montana - 7 87 63
Nevada - 4 56 66
New Mexico 1 5 80 65
Utah 1 10 225 180
Wyoming - 4 38 41
Pacific 24 92 3,015 2,942
Alaska 1 6 56 96
California 15 70 2,360 2,245
Hawaii - 3 34 24
Oregon 7 16 366 310
Washington 1 12 199 267
U.S. Territories - 2 13 14
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 0 - -
Puerto Rico - 2 13 11
U.S. Virgin Islands - 0 - 3
Non-U.S. Residents - 1 5 4
Total 161 409 13,476 12,964
  • 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.