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 23, 2021 (Week 42)
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 - - 62 434 8,011 7,748 63 316 5,942 7,917
New England - 0 - - 2 15 242 231 1 12 236 199
Connecticut - 0 - - - 7 77 68 - 6 52 44
Maine - 0 - - - 3 21 8 - 2 5 3
Massachusetts - 0 - - 2 7 90 75 1 7 132 109
New Hampshire - 0 - - - 2 20 16 - 3 8 6
Rhode Island - 0 - - - 4 32 26 - 4 37 30
Vermont - 0 - - - 1 2 38 - 1 2 7
Middle Atlantic - 0 - - 20 72 1,224 908 24 59 1,088 876
New Jersey - 0 - - - 3 10 27 1 12 174 145
New York (excluding New York City) - 0 - - 12 37 496 305 6 16 179 130
New York City - 0 - - 1 24 376 331 14 30 593 435
Pennsylvania - 0 - - 7 22 342 245 3 9 142 166
East North Central - 0 - - 2 50 1,008 1,165 - 22 459 619
Illinois - 0 - - - 18 269 303 - 12 198 209
Indiana - 0 - - - 4 17 117 - 2 4 49
Michigan - 0 - - - 6 1 178 - 5 4 127
Ohio - 0 - - - 18 379 314 - 10 180 176
Wisconsin - 0 - - 2 20 342 253 - 6 73 58
West North Central - 3 - - 4 58 926 1,315 - 19 181 298
Iowa - 0 - - 1 30 417 332 - 7 58 54
Kansas - 0 - - 1 15 145 143 - 7 39 13
Minnesota - 0 - - - 12 - 350 - 4 - 127
Missouri - 0 - - - 8 76 227 - 3 27 48
Nebraska - 0 - - 2 13 169 134 - 4 43 34
North Dakota - 3 - - - 14 55 44 - 1 2 10
South Dakota - 0 - - - 6 64 85 - 2 12 12
South Atlantic - 1 - - 6 65 1,257 1,140 3 36 675 1,143
Delaware - 0 - - - 3 19 18 - 2 15 7
District of Columbia - 0 - - - 0 - 8 - 2 6 28
Florida - 0 - - - 22 374 352 - 18 328 456
Georgia - 0 - - - 18 278 145 - 0 - 197
Maryland - 0 - - 2 15 188 110 2 8 87 99
North Carolina - 0 - - - 10 106 209 - 6 73 172
South Carolina - 0 - - 1 4 55 62 - 4 34 55
Virginia - 1 - - 3 14 236 175 1 8 132 114
West Virginia - 0 - - - 3 1 61 - 1 - 15
East South Central - 0 - - 4 27 390 427 3 10 181 527
Alabama - 0 - - 2 7 111 83 1 5 67 333
Kentucky - 0 - - - 7 46 131 1 3 18 41
Mississippi - 0 - - - 1 1 11 - 2 7 30
Tennessee - 0 - - 2 16 232 202 1 6 89 123
West South Central - 0 - - 4 59 570 424 4 34 436 1,411
Arkansas - 0 - - 2 8 87 54 1 5 11 25
Louisiana - 0 - - - 3 14 61 1 5 47 162
Oklahoma - 0 - - 2 8 32 - - 2 8 -
Texas - 0 - - - 53 437 309 2 32 370 1,224
Mountain - 0 - - 8 60 1,090 866 8 30 667 562
Arizona - 0 - - 4 17 248 147 5 17 273 208
Colorado - 0 - - 3 27 411 245 2 13 183 188
Idaho - 0 - - - 5 56 132 - 5 25 15
Montana - 0 - - - 8 58 78 - 2 3 10
Nevada - 0 - - 1 5 54 29 - 6 59 54
New Mexico - 0 - - - 5 31 36 1 8 74 48
Utah - 0 - - - 12 179 155 - 4 47 39
Wyoming - 0 - - - 4 53 44 - 1 3 -
Pacific - 0 - - 12 315 1,304 1,272 20 240 2,019 2,282
Alaska - 0 - - - 1 8 8 - 1 3 1
California - 0 - - 9 45 1,016 1,084 17 74 1,623 2,085
Hawaii - 0 - - - 2 3 5 - 3 21 33
Oregon - 0 - - 3 19 250 175 3 7 101 163
Washington - 0 - - - 308 27 - - 225 271 -
U.S. Territories - 0 - - - 1 3 6 - 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 6 - 1 1 -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 0 - 3
Total - 3 - - 62 434 8,014 7,754 63 316 5,947 7,924
  • 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.