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 August 28, 2021 (Week 34)
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 69 224 3,845 4,827 21 183 1,400 1,806
New England 3 16 196 219 - 13 68 30
Connecticut - 3 30 24 - 7 26 5
Maine 2 6 39 38 - 2 2 -
Massachusetts 1 6 75 72 - 6 32 21
New Hampshire - 4 32 24 - 1 5 3
Rhode Island - 3 19 18 - 1 3 1
Vermont - 6 1 43 - 0 - -
Middle Atlantic 25 47 643 672 3 47 215 241
New Jersey - 7 66 87 - 1 1 101
New York (excluding New York City) 18 25 263 262 3 26 113 33
New York City 5 9 131 100 - 12 101 107
Pennsylvania 2 14 183 223 N NC N N
East North Central 4 60 670 999 - 42 266 444
Illinois - 12 125 174 - 21 105 307
Indiana - 6 6 89 - 2 6 6
Michigan - 8 5 164 - 1 - 15
Ohio - 25 237 236 - 15 65 43
Wisconsin 4 35 297 336 - 23 90 73
West North Central 7 32 503 625 1 22 127 550
Iowa 1 21 226 261 - 14 70 266
Kansas 2 5 42 50 - 5 7 49
Minnesota - 0 - - - 0 - -
Missouri - 5 60 148 - 6 9 132
Nebraska 4 7 70 83 1 8 27 82
North Dakota - 4 20 19 N NC N N
South Dakota - 13 85 64 - 4 14 21
South Atlantic 7 34 575 726 3 49 307 149
Delaware 1 3 13 11 - 2 4 1
District of Columbia - 2 4 10 - 0 - -
Florida - 14 177 171 - 38 129 50
Georgia 3 8 118 123 1 12 60 31
Maryland 1 5 38 50 - 6 31 12
North Carolina - 9 58 129 - 7 28 31
South Carolina 1 6 52 56 2 8 26 11
Virginia 1 12 115 137 - 12 29 10
West Virginia - 3 - 39 - 0 - 3
East South Central - 15 208 384 - 12 41 42
Alabama - 7 62 88 - 3 5 5
Kentucky - 6 59 145 - 5 13 9
Mississippi - 1 - 15 N NC N N
Tennessee - 8 87 136 - 7 23 28
West South Central 5 35 297 366 13 50 160 291
Arkansas - 6 32 36 - 3 8 5
Louisiana 5 8 45 67 - 11 8 31
Oklahoma - 5 58 59 N NC N N
Texas - 27 162 204 13 39 144 255
Mountain 10 23 387 399 1 23 152 49
Arizona 2 8 69 61 - 4 18 1
Colorado 5 7 112 105 1 18 107 33
Idaho 2 5 52 54 N NC N N
Montana - 5 37 38 - 1 3 1
Nevada - 2 7 14 N NC N N
New Mexico 1 4 21 28 - 1 1 4
Utah - 10 85 91 - 6 22 9
Wyoming - 2 4 8 - 1 1 1
Pacific 8 20 366 437 - 14 64 10
Alaska - 1 2 6 - 1 - -
California 4 14 195 269 - 10 51 10
Hawaii 1 1 3 4 - 0 - -
Oregon 2 6 87 58 - 4 13 -
Washington 1 7 79 100 - 0 - -
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 - 0 - 2 - 1 1 -
Total 69 224 3,845 4,832 21 184 1,401 1,806
  • 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 years 2020 and 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.