Notice: For data on COVID-19 in the United States, please see https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html

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

TABLE 1ff. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending September 4, 2021 (Week 35)
Reporting Area Severe acute respiratory syndrome-associated coronavirus disease Shiga toxin-producing Escherichia coli (STEC) Shigellosis
Current weekPrevious 52 weeks Max †Cum YTD 2021 †Cum YTD 2020 †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 - 3 - - 103 321 6,328 6,257 83 205 4,570 6,376
New England - 2 - - - 14 189 193 4 10 191 164
Connecticut - 0 - - - 6 55 51 - 6 43 37
Maine - 0 - - - 3 20 7 - 2 4 2
Massachusetts - 2 - - - 6 67 65 3 6 105 90
New Hampshire - 0 - - - 2 17 15 - 3 8 3
Rhode Island - 0 - - - 4 28 23 1 4 30 25
Vermont - 0 - - - 2 2 32 - 1 1 7
Middle Atlantic - 0 - - 23 71 952 715 45 43 846 742
New Jersey - 0 - - - 5 10 17 - 12 127 127
New York (excluding New York City) - 0 - - 18 37 395 240 16 10 138 110
New York City - 0 - - 1 22 289 246 26 28 475 373
Pennsylvania - 0 - - 4 20 258 212 3 10 106 132
East North Central - 0 - - 7 44 705 912 - 22 350 497
Illinois - 0 - - - 14 132 245 - 12 143 172
Indiana - 0 - - - 5 11 89 - 2 4 35
Michigan - 0 - - - 9 1 122 - 4 4 88
Ohio - 0 - - - 18 297 244 - 10 145 149
Wisconsin - 0 - - 7 20 264 212 - 6 54 53
West North Central - 3 - - 4 54 729 1,043 1 17 151 253
Iowa - 0 - - - 29 320 276 - 6 49 49
Kansas - 0 - - - 15 105 116 - 5 32 11
Minnesota - 0 - - - 17 - 280 - 5 - 113
Missouri - 0 - - - 8 76 172 - 3 27 36
Nebraska - 0 - - 4 13 147 109 1 4 33 28
North Dakota - 3 - - - 7 39 33 - 1 1 10
South Dakota - 0 - - - 15 42 57 - 2 9 6
South Atlantic - 0 - - 10 53 973 898 5 36 569 1,014
Delaware - 0 - - - 3 13 16 - 2 9 7
District of Columbia - 0 - - - 2 - 3 - 2 6 26
Florida - 0 - - - 20 305 288 - 18 274 396
Georgia - 0 - - - 15 204 115 - 1 - 196
Maryland - 0 - - 5 11 140 75 2 8 74 84
North Carolina - 0 - - 1 9 72 166 - 6 67 155
South Carolina - 0 - - 1 5 47 50 1 4 29 45
Virginia - 0 - - 3 14 191 140 2 8 110 96
West Virginia - 0 - - - 4 1 45 - 2 - 9
East South Central - 0 - - 1 24 295 323 - 9 117 486
Alabama - 0 - - 1 7 93 66 - 5 51 317
Kentucky - 0 - - - 4 19 84 - 2 8 35
Mississippi - 0 - - - 1 1 10 - 2 7 27
Tennessee - 0 - - - 16 182 163 - 5 51 107
West South Central - 0 - - 18 60 580 409 2 33 349 1,339
Arkansas - 0 - - 2 8 69 40 2 5 7 21
Louisiana - 0 - - - 3 7 53 - 5 38 149
Oklahoma - 0 - - - 10 76 94 - 11 22 111
Texas - 0 - - 16 53 428 222 - 32 282 1,058
Mountain - 3 - - 22 57 894 678 11 29 460 475
Arizona - 0 - - 14 17 215 119 3 14 170 169
Colorado - 3 - - 8 27 328 192 5 13 135 160
Idaho - 0 - - - 6 32 98 - 5 12 14
Montana - 0 - - - 8 58 64 - 2 3 10
Nevada - 0 - - - 5 52 23 - 6 56 46
New Mexico - 0 - - - 5 26 24 3 4 43 44
Utah - 0 - - - 12 146 124 - 5 38 32
Wyoming - 0 - - - 3 37 34 - 1 3 -
Pacific - 0 - - 18 56 1,011 1,086 15 72 1,537 1,406
Alaska - 0 - - - 1 8 7 - 1 3 1
California - 0 - - 15 44 786 886 13 58 1,206 1,132
Hawaii - 0 - - - 2 4 3 - 3 18 32
Oregon - 0 - - 2 19 202 135 1 8 83 130
Washington - 0 - - 1 2 11 55 1 15 227 111
U.S. Territories - 0 - - - 1 3 4 - 2 5 4
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 1 4 4
Puerto Rico - 0 - - - 1 3 4 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 3
Total - 3 - - 103 321 6,331 6,261 83 205 4,575 6,383
  • 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.