Notice: Improvements in data processing at CDC were applied to 2020 and 2021 data beginning with the tables published for week 47. Case count changes between tables published for week 46 and week 47 may be due to changes in data processing rules and not due to changes in disease levels.

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

TABLE 1m. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 11, 2021 (Week 49)
Reporting Area Gonorrhea Haemophilus influenzae, invasive disease
All ages, all serotypes Age <5 years
Serotype b
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 5,228 15,640 594,474 623,403 31 62 1,943 2,809 - 2 14 14
New England 132 304 9,884 13,442 - 7 76 128 - 0 - -
Connecticut - 129 60 4,313 - 2 10 29 - 0 - -
Maine - 17 383 475 - 1 11 9 - 0 - -
Massachusetts 128 197 7,643 6,950 - 4 36 54 - 0 - -
New Hampshire 4 21 460 432 - 1 3 16 - 0 - -
Rhode Island - 129 1,204 1,144 - 2 13 11 - 0 - -
Vermont - 8 134 128 - 2 3 9 - 0 - -
Middle Atlantic 1,037 1,614 66,540 65,857 5 13 242 369 - 1 4 4
New Jersey 158 241 8,817 9,326 - 1 10 64 - 0 - -
New York (excluding New York City) 336 404 13,835 16,274 - 6 56 100 - 1 1 1
New York City 233 692 26,146 23,325 2 4 45 64 - 0 - 1
Pennsylvania 310 438 17,742 16,932 3 7 131 141 - 1 3 2
East North Central 245 2,568 84,061 100,851 - 16 385 498 - 1 6 5
Illinois 26 711 19,950 28,683 - 5 77 106 - 0 - 1
Indiana - 381 11,885 12,773 - 4 83 86 - 1 2 1
Michigan 59 575 17,175 21,360 - 6 71 95 - 0 - 1
Ohio - 755 25,106 28,567 - 7 126 146 - 1 3 1
Wisconsin 160 267 9,945 9,468 - 3 28 65 - 1 1 1
West North Central 145 1,191 33,624 43,376 1 5 69 239 - 0 - -
Iowa 21 160 5,756 6,382 - 1 2 2 - 0 - -
Kansas 10 133 2,204 5,150 - 2 6 42 - 0 - -
Minnesota 51 244 9,017 9,580 - 1 1 58 - 0 - -
Missouri - 723 9,718 15,300 - 4 23 91 - 0 - -
Nebraska 60 108 3,154 3,170 1 2 19 24 - 0 - -
North Dakota 3 50 1,402 1,551 - 2 6 5 - 0 - -
South Dakota - 70 2,373 2,243 - 2 12 17 - 0 - -
South Atlantic 1,409 3,675 128,149 131,580 10 18 499 675 - 1 1 1
Delaware - 91 1,420 1,266 - 2 6 7 - 0 - -
District of Columbia 6 115 3,918 3,568 - 0 - 7 - 0 - -
Florida 600 1,047 41,704 37,110 10 9 205 196 - 1 1 -
Georgia 263 547 19,783 21,716 - 8 102 121 - 0 - 1
Maryland - 287 10,194 11,154 - 4 52 72 - 0 - -
North Carolina - 655 20,689 26,184 - 3 39 129 - 0 - -
South Carolina 275 515 15,359 15,346 - 3 37 47 - 0 - -
Virginia 262 804 13,582 13,586 - 5 46 64 - 0 - -
West Virginia 3 49 1,500 1,650 - 2 12 32 - 0 - -
East South Central 500 2,206 51,174 49,331 1 8 158 209 - 0 - 2
Alabama 304 394 15,027 13,128 - 5 67 54 - 0 - 1
Kentucky 40 1,424 7,554 6,410 1 2 26 36 - 0 - 1
Mississippi 107 313 11,196 12,800 - 2 23 28 - 0 - -
Tennessee 49 562 17,397 16,993 - 5 42 91 - 0 - -
West South Central 183 2,209 76,636 85,611 9 15 300 351 - 0 - 1
Arkansas 52 193 6,652 7,369 3 3 42 41 - 0 - -
Louisiana 104 385 14,715 14,204 - 5 68 61 - 0 - 1
Oklahoma 26 251 5,843 10,406 1 8 70 79 - 0 - -
Texas 1 1,437 49,426 53,632 5 13 120 170 - 0 - -
Mountain 386 1,101 44,314 40,470 5 8 155 247 - 1 2 1
Arizona 52 398 16,432 15,114 2 4 55 90 - 1 1 -
Colorado 226 282 9,954 8,949 - 1 - 49 - 0 - -
Idaho 6 52 1,058 1,386 1 2 17 16 - 0 - -
Montana 15 42 1,312 1,577 - 2 16 12 - 0 - -
Nevada - 299 7,172 5,944 - 3 17 15 - 1 1 -
New Mexico 17 124 4,513 4,300 - 2 18 28 - 0 - 1
Utah 66 92 3,427 2,830 2 3 30 33 - 1 - -
Wyoming 4 20 446 370 - 1 2 4 - 0 - -
Pacific 1,191 2,249 100,092 92,885 - 9 59 93 - 1 1 -
Alaska - 56 1,638 1,846 - 2 11 12 - 0 - -
California 910 1,934 85,660 72,754 - 2 16 20 - 0 - -
Hawaii - 35 - 1,371 - 1 4 11 - 0 - -
Oregon 109 153 5,893 5,924 - 2 28 50 - 1 1 -
Washington 172 206 6,901 10,990 - 6 - - - 0 - -
U.S. Territories - 18 218 360 - 0 - - - 0 - -
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 0 - -
Puerto Rico - 18 218 360 - 0 - - - 0 - -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 10 41 6 - 0 - - - 0 - -
Total 5,228 15,648 594,733 623,769 31 62 1,943 2,809 - 2 14 14
  • 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.