Nationally Notifiable Infectious Diseases and Conditions, United States: Weekly Tables

TABLE 1i. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending October 23, 2021 (Week 42)
Reporting Area Cryptosporidiosis Cyclosporiasis
Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †
U.S. Residents, excluding U.S. Territories 64 289 5,237 6,339 - 192 1,669 2,450
New England 2 17 255 285 - 13 74 37
Connecticut - 4 37 27 - 7 27 7
Maine - 6 48 51 - 2 2 -
Massachusetts 2 7 102 97 - 6 37 23
New Hampshire - 6 40 34 - 1 5 3
Rhode Island - 3 25 20 - 1 3 4
Vermont - 2 3 56 - 0 - -
Middle Atlantic 18 52 922 816 - 49 240 267
New Jersey - 10 101 100 - 1 1 104
New York (excluding New York City) 13 25 361 334 - 28 130 46
New York City 2 20 212 121 - 12 109 117
Pennsylvania 3 16 248 261 N NC N N
East North Central 3 66 1,017 1,280 - 42 292 474
Illinois - 19 208 213 - 21 122 318
Indiana - 6 9 132 - 2 6 7
Michigan - 6 5 209 - 1 - 20
Ohio - 25 327 287 - 15 70 56
Wisconsin 3 34 468 439 - 23 94 73
West North Central 6 36 684 1,098 - 26 146 763
Iowa 1 21 332 315 - 16 81 267
Kansas 4 6 79 64 - 2 9 59
Minnesota - 12 - 320 - 1 - 142
Missouri - 5 60 206 - 5 9 185
Nebraska 1 7 86 102 - 8 31 88
North Dakota - 4 25 21 N NC N N
South Dakota - 13 102 70 - 4 16 22
South Atlantic 13 35 782 953 - 51 374 278
Delaware - 2 16 21 - 2 4 1
District of Columbia - 2 4 11 - 0 - -
Florida - 14 219 237 - 40 171 138
Georgia 4 9 166 158 - 12 67 45
Maryland 4 5 57 64 - 6 42 15
North Carolina 1 8 95 171 - 8 33 34
South Carolina - 6 69 70 - 8 26 12
Virginia 4 12 150 166 - 4 31 28
West Virginia - 2 6 55 - 0 - 5
East South Central 6 18 268 477 - 9 69 72
Alabama 4 7 92 106 - 3 6 10
Kentucky 1 8 88 191 - 5 24 13
Mississippi - 1 - 17 N NC N N
Tennessee 1 7 88 163 - 7 39 49
West South Central 2 35 304 410 - 32 231 490
Arkansas - 6 42 49 - 4 12 9
Louisiana - 8 58 82 - 3 9 54
Oklahoma 2 4 22 - N NC N N
Texas - 27 182 279 - 31 210 427
Mountain 7 23 488 495 - 23 168 56
Arizona - 8 73 72 - 5 20 2
Colorado 5 10 159 131 - 18 116 35
Idaho 1 6 69 75 N NC N N
Montana - 5 37 42 - 1 3 1
Nevada - 2 12 18 N NC N N
New Mexico 1 4 31 36 - 2 4 4
Utah - 10 103 111 - 6 23 12
Wyoming - 2 4 10 - 1 2 2
Pacific 7 176 517 525 - 14 75 13
Alaska 1 5 17 6 - 0 - 2
California 5 15 283 433 - 10 61 11
Hawaii - 1 5 4 - 0 - -
Oregon 1 6 103 82 - 4 14 -
Washington - 172 109 - - 11 - -
U.S. Territories - 0 - 3 - 0 - -
American Samoa N NC N N N NC N N
Commonwealth of Northern Mariana Islands - 0 - - - 0 - -
Guam - 0 - - - 0 - -
Puerto Rico - 0 - 3 - 0 - -
U.S. Virgin Islands - 0 - - - 0 - -
Non-U.S. Residents - 1 - 3 - 1 1 -
Total 64 289 5,237 6,345 - 193 1,670 2,450
  • 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.
  • Max: Maximum — Maximum case count during the previous 52 weeks.
  • * Case counts for reporting year 2021 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/docs/Readers-Guide-WONDER-Tables-20210421-508.pdf.
  • †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 as numbered tables. 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.