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 October 16, 2021 (Week 41)
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 - - 72 442 7,869 7,649 76 317 5,721 7,869
New England - 2 - - - 15 238 225 3 12 233 195
Connecticut - 0 - - - 7 77 64 - 6 52 42
Maine - 0 - - - 3 21 8 - 2 5 3
Massachusetts - 2 - - - 7 88 75 3 7 132 108
New Hampshire - 0 - - - 2 20 16 - 3 8 5
Rhode Island - 0 - - - 4 30 25 - 4 34 30
Vermont - 0 - - - 1 2 37 - 1 2 7
Middle Atlantic - 0 - - 17 72 1,189 879 16 59 1,052 866
New Jersey - 0 - - - 3 10 26 - 12 165 142
New York (excluding New York City) - 0 - - 13 37 483 299 1 16 173 129
New York City - 0 - - 1 24 363 318 14 30 578 431
Pennsylvania - 0 - - 3 22 333 236 1 9 136 164
East North Central - 0 - - 2 50 975 1,142 1 22 442 607
Illinois - 0 - - - 18 268 296 - 12 192 203
Indiana - 0 - - - 4 17 113 - 2 4 48
Michigan - 0 - - - 6 1 173 - 5 4 124
Ohio - 0 - - - 18 357 310 - 10 171 176
Wisconsin - 0 - - 2 20 332 250 1 6 71 56
West North Central - 3 - - 2 58 909 1,287 1 19 179 296
Iowa - 0 - - 2 30 406 322 1 7 56 54
Kansas - 0 - - - 15 143 141 - 7 39 11
Minnesota - 0 - - - 12 - 342 - 4 - 127
Missouri - 0 - - - 8 76 223 - 3 27 48
Nebraska - 0 - - - 13 167 131 - 4 43 34
North Dakota - 3 - - - 14 53 44 - 1 2 10
South Dakota - 0 - - - 6 64 84 - 2 12 12
South Atlantic - 1 - - 15 63 1,224 1,102 9 36 658 1,127
Delaware - 0 - - - 3 15 17 1 2 13 7
District of Columbia - 0 - - - 0 - 8 - 2 6 28
Florida - 0 - - - 21 373 340 - 18 320 451
Georgia - 0 - - - 18 272 141 - 0 - 197
Maryland - 0 - - 6 15 184 107 4 8 85 95
North Carolina - 0 - - - 9 97 200 - 6 70 168
South Carolina - 0 - - 3 4 54 61 - 4 34 53
Virginia - 1 - - 6 14 228 169 4 8 130 114
West Virginia - 0 - - - 3 1 59 - 1 - 14
East South Central - 0 - - 3 27 374 410 2 9 142 525
Alabama - 0 - - 2 7 106 80 2 5 65 333
Kentucky - 0 - - - 9 46 122 - 3 16 40
Mississippi - 0 - - - 1 1 10 - 2 7 30
Tennessee - 0 - - 1 16 221 198 - 5 54 122
West South Central - 0 - - 8 60 638 518 11 34 447 1,508
Arkansas - 0 - - 1 8 85 54 - 5 10 25
Louisiana - 0 - - 1 3 14 59 2 5 46 162
Oklahoma - 0 - - 5 10 103 110 - 11 28 113
Texas - 0 - - 1 53 436 295 9 32 363 1,208
Mountain - 0 - - 13 58 1,047 842 12 30 633 551
Arizona - 0 - - 2 17 242 141 6 18 262 204
Colorado - 0 - - 8 27 402 239 4 13 177 183
Idaho - 0 - - - 5 32 126 - 5 12 15
Montana - 0 - - - 8 58 77 - 2 3 10
Nevada - 0 - - - 5 53 28 - 6 59 54
New Mexico - 0 - - - 5 29 35 - 8 70 48
Utah - 0 - - 2 12 179 153 2 4 47 37
Wyoming - 0 - - 1 4 52 43 - 1 3 -
Pacific - 0 - - 12 315 1,275 1,244 21 240 1,935 2,194
Alaska - 0 - - - 1 8 8 - 1 3 1
California - 0 - - 9 45 991 1,063 21 88 1,546 2,001
Hawaii - 0 - - - 2 3 5 - 3 21 32
Oregon - 0 - - 3 19 246 168 - 7 94 160
Washington - 0 - - - 308 27 - - 225 271 -
U.S. Territories - 0 - - - 1 3 5 - 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 5 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 3
Total - 3 - - 72 442 7,872 7,654 76 317 5,726 7,876
  • 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.