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 August 28, 2021 (Week 34)
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 - - 84 313 6,088 5,733 79 205 4,411 6,130
New England - 2 - - - 14 188 186 4 10 186 158
Connecticut - 0 - - - 6 55 49 - 6 43 35
Maine - 0 - - - 3 20 6 - 2 4 2
Massachusetts - 2 - - - 6 66 63 4 6 101 86
New Hampshire - 0 - - - 2 17 14 - 3 8 3
Rhode Island - 0 - - - 4 28 23 - 4 29 25
Vermont - 0 - - - 2 2 31 - 1 1 7
Middle Atlantic - 0 - - 18 70 909 678 28 43 798 723
New Jersey - 0 - - - 5 10 17 1 12 127 124
New York (excluding New York City) - 0 - - 16 37 377 227 10 10 123 107
New York City - 0 - - - 22 274 231 15 28 447 362
Pennsylvania - 0 - - 2 20 248 203 2 10 101 130
East North Central - 0 - - 3 44 666 879 - 21 328 490
Illinois - 0 - - - 14 132 240 - 12 135 168
Indiana - 0 - - - 5 11 86 - 2 4 34
Michigan - 0 - - - 9 1 116 - 4 4 87
Ohio - 0 - - - 18 275 231 - 10 132 148
Wisconsin - 0 - - 3 19 247 206 - 6 53 53
West North Central - 3 - - 3 47 717 733 1 17 148 140
Iowa - 0 - - - 29 318 270 - 6 48 49
Kansas - 0 - - - 15 105 113 - 5 31 11
Minnesota - 0 - - - 0 - - - 0 - -
Missouri - 0 - - - 9 76 163 - 3 27 36
Nebraska - 0 - - 3 13 142 101 1 4 32 28
North Dakota - 3 - - - 6 34 31 - 1 1 10
South Dakota - 0 - - - 15 42 55 - 2 9 6
South Atlantic - 0 - - 19 52 943 859 4 35 559 996
Delaware - 0 - - - 3 13 15 - 1 7 7
District of Columbia - 0 - - - 2 - 3 - 2 6 26
Florida - 0 - - - 20 305 282 - 18 274 389
Georgia - 0 - - 1 13 196 108 - 2 - 194
Maryland - 0 - - 11 10 135 72 1 8 72 83
North Carolina - 0 - - - 12 62 154 - 6 65 150
South Carolina - 0 - - 1 5 45 48 - 4 27 44
Virginia - 0 - - 6 14 186 135 3 7 108 94
West Virginia - 0 - - - 4 1 42 - 2 - 9
East South Central - 0 - - 3 23 280 312 - 10 117 476
Alabama - 0 - - 2 7 86 65 - 5 51 314
Kentucky - 0 - - - 5 17 79 - 2 8 35
Mississippi - 0 - - - 1 1 10 - 2 7 27
Tennessee - 0 - - 1 16 176 158 - 7 51 100
West South Central - 0 - - 10 60 559 398 4 33 347 1,330
Arkansas - 0 - - - 8 67 37 - 5 5 21
Louisiana - 0 - - - 3 7 51 4 5 38 147
Oklahoma - 0 - - 2 10 76 90 - 11 22 111
Texas - 0 - - 8 53 409 220 - 32 282 1,051
Mountain - 3 - - 9 56 852 653 15 29 437 465
Arizona - 0 - - 4 17 198 116 14 13 164 168
Colorado - 3 - - 5 26 311 182 1 13 125 154
Idaho - 0 - - - 6 32 95 - 5 12 14
Montana - 0 - - - 8 58 61 - 2 2 10
Nevada - 0 - - - 5 50 23 - 6 53 46
New Mexico - 0 - - - 5 25 24 - 4 40 43
Utah - 0 - - - 12 142 121 - 5 38 30
Wyoming - 0 - - - 3 36 31 - 1 3 -
Pacific - 0 - - 19 53 974 1,035 23 72 1,491 1,352
Alaska - 0 - - - 1 8 7 - 1 3 1
California - 0 - - 11 44 749 843 16 58 1,168 1,092
Hawaii - 0 - - - 2 4 3 - 3 18 31
Oregon - 0 - - 8 19 203 127 2 8 82 122
Washington - 0 - - - 2 10 55 5 15 220 106
U.S. Territories - 0 - - - 1 3 3 - 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 3 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 3
Total - 3 - - 84 313 6,091 5,736 79 205 4,416 6,137
  • 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.