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 September 21, 2024 (Week 38)
Reporting Area Giardiasis
Current weekPrevious 52 weeks Max †Cum YTD 2024 †Cum YTD 2023 †
U.S. Residents, excluding U.S. Territories 162 448 11,234 11,605
New England 12 40 896 773
Connecticut - 13 131 126
Maine 1 10 83 108
Massachusetts 11 27 557 432
New Hampshire - 9 66 67
Rhode Island - 6 59 40
Vermont N NC N N
Middle Atlantic 61 104 2,493 2,422
New Jersey - 15 13 365
New York (excluding New York City) 39 48 896 607
New York City 16 44 1,101 974
Pennsylvania 6 25 483 476
East North Central 22 69 1,390 1,175
Illinois N NC N N
Indiana - 11 166 135
Michigan 1 18 357 368
Ohio 14 39 440 302
Wisconsin 7 29 427 370
West North Central 5 38 588 903
Iowa 1 9 134 149
Kansas 1 6 80 96
Minnesota - 14 - 315
Missouri 2 13 218 195
Nebraska 1 6 82 60
North Dakota - 2 25 27
South Dakota - 5 49 61
South Atlantic 16 74 1,819 2,003
Delaware - 5 32 28
District of Columbia - 4 1 70
Florida 7 41 916 947
Georgia 1 23 263 386
Maryland 2 14 208 161
North Carolina N NC N N
South Carolina 4 11 166 119
Virginia 2 11 163 238
West Virginia - 5 70 54
East South Central 1 17 263 315
Alabama - 13 69 161
Kentucky 1 13 194 154
Mississippi N NC N N
Tennessee N NC N N
West South Central 11 22 331 282
Arkansas 11 9 110 107
Louisiana - 15 221 175
Oklahoma N NC N N
Texas N NC N N
Mountain 3 52 788 1,130
Arizona - 11 135 115
Colorado - 27 192 498
Idaho - 5 64 85
Montana 1 6 84 68
Nevada - 5 23 72
New Mexico - 6 65 70
Utah 2 14 218 189
Wyoming - 3 7 33
Pacific 31 106 2,666 2,602
Alaska 2 9 58 36
California 20 84 2,120 2,038
Hawaii - 4 31 37
Oregon 7 18 250 311
Washington 2 12 207 180
U.S. Territories - 2 9 20
American Samoa - 0 - -
Commonwealth of Northern Mariana Islands - 0 - -
Guam - 1 1 -
Puerto Rico - 2 8 14
U.S. Virgin Islands - 0 - 6
Non-U.S. Residents - 4 28 4
Total 162 448 11,271 11,629
  • 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.