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 7, 2021 (Week 31)
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 - - 123 280 5,170 5,028 57 175 3,794 5,646
New England - 2 - - 2 13 161 164 - 10 155 145
Connecticut - 0 - - - 5 42 43 - 6 35 32
Maine - 0 - - 1 3 16 6 - 2 4 2
Massachusetts - 2 - - 1 6 61 54 - 7 85 79
New Hampshire - 0 - - - 2 16 12 - 3 5 1
Rhode Island - 0 - - - 4 24 21 - 4 25 24
Vermont - 0 - - - 3 2 28 - 1 1 7
Middle Atlantic - 0 - - 34 59 778 564 20 40 686 673
New Jersey - 0 - - - 5 10 14 - 12 113 115
New York (excluding New York City) - 0 - - 24 36 330 178 9 10 105 96
New York City - 0 - - 1 22 220 198 8 23 382 343
Pennsylvania - 0 - - 9 19 218 174 3 10 86 119
East North Central - 0 - - 4 44 562 772 3 21 292 450
Illinois - 0 - - - 14 102 216 - 12 118 158
Indiana - 0 - - - 5 11 78 - 2 4 32
Michigan - 0 - - - 9 1 98 - 4 4 83
Ohio - 0 - - - 17 239 199 - 10 118 131
Wisconsin - 0 - - 4 19 209 181 3 4 48 46
West North Central - 3 - - 7 47 612 647 3 17 129 135
Iowa - 0 - - 3 29 269 240 - 6 37 48
Kansas - 0 - - - 15 85 99 - 5 27 11
Minnesota - 0 - - - 0 - - - 0 - -
Missouri - 1 - - - 9 76 142 - 3 27 35
Nebraska - 0 - - 4 13 122 90 3 4 28 27
North Dakota - 3 - - - 5 28 28 - 2 1 8
South Dakota - 0 - - - 15 32 48 - 2 9 6
South Atlantic - 0 - - 20 52 808 761 7 31 498 894
Delaware - 0 - - - 3 12 10 - 1 7 6
District of Columbia - 0 - - - 2 - 3 - 2 6 25
Florida - 0 - - 2 20 267 264 - 18 252 333
Georgia - 0 - - - 10 159 90 - 5 - 188
Maryland - 0 - - 6 10 108 63 2 8 68 75
North Carolina - 0 - - - 12 52 136 - 6 53 135
South Carolina - 0 - - 2 5 42 42 - 3 18 40
Virginia - 0 - - 10 14 167 116 5 7 94 85
West Virginia - 0 - - - 4 1 37 - 2 - 7
East South Central - 0 - - 4 22 248 279 1 10 104 454
Alabama - 0 - - 4 6 75 61 1 5 42 308
Kentucky - 0 - - - 5 17 73 - 2 8 33
Mississippi - 0 - - - 1 1 10 - 2 7 26
Tennessee - 0 - - - 15 155 135 - 7 47 87
West South Central - 0 - - 18 60 498 357 2 33 288 1,297
Arkansas - 0 - - 4 8 61 28 - 5 5 19
Louisiana - 0 - - - 5 7 44 - 5 33 138
Oklahoma - 0 - - 3 10 74 81 2 11 21 109
Texas - 0 - - 11 53 356 204 - 32 229 1,031
Mountain - 3 - - 19 54 715 574 7 24 365 416
Arizona - 0 - - 11 17 176 103 4 12 127 157
Colorado - 3 - - 7 25 252 155 2 11 112 128
Idaho - 0 - - - 6 32 85 - 5 12 14
Montana - 0 - - - 7 52 55 - 2 - 9
Nevada - 0 - - 1 5 35 22 - 6 45 42
New Mexico - 0 - - - 5 23 19 - 4 36 39
Utah - 0 - - - 10 113 107 1 4 30 27
Wyoming - 0 - - - 3 32 28 - 1 3 -
Pacific - 0 - - 15 50 788 910 14 67 1,277 1,182
Alaska - 0 - - 1 1 7 7 - 1 3 1
California - 0 - - 12 42 627 728 10 56 986 973
Hawaii - 0 - - - 2 4 3 1 3 16 29
Oregon - 0 - - 2 14 146 117 2 13 73 89
Washington - 0 - - - 2 4 55 1 15 199 90
U.S. Territories - 0 - - - 1 2 2 - 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 2 2 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 3
Total - 3 - - 123 280 5,172 5,030 57 175 3,799 5,653
  • 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.