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 January 1, 2022 (Week 52)
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 2,959 14,517 623,858 664,603 20 74 2,197 2,936 - 2 15 15
New England 3 277 3,022 14,339 - 7 77 128 - 0 - -
Connecticut - 24 60 4,603 - 2 10 29 - 0 - -
Maine - 17 383 507 - 1 13 9 - 0 - -
Massachusetts - 174 570 7,365 - 4 36 54 - 0 - -
New Hampshire - 21 477 455 - 1 3 16 - 0 - -
Rhode Island 3 129 1,396 1,270 - 2 11 11 - 0 - -
Vermont - 8 136 139 - 2 4 9 - 0 - -
Middle Atlantic 640 1,565 70,414 70,028 2 13 268 384 - 1 4 4
New Jersey 83 230 9,150 9,921 - 1 10 66 - 0 - -
New York (excluding New York City) 262 404 14,567 17,291 2 6 66 107 - 1 1 1
New York City 113 692 27,820 24,832 - 4 49 66 - 0 - 1
Pennsylvania 182 438 18,877 17,984 - 7 143 145 - 1 3 2
East North Central 124 2,583 88,461 107,734 1 21 431 517 - 1 6 5
Illinois - 716 21,691 30,540 - 5 87 108 - 0 - 1
Indiana - 346 11,936 13,803 1 4 88 91 - 1 2 1
Michigan 38 575 17,884 22,858 - 6 77 100 - 0 - 1
Ohio - 762 26,586 30,401 - 16 151 149 - 1 3 1
Wisconsin 86 267 10,364 10,132 - 3 28 69 - 1 1 1
West North Central 81 1,191 40,283 46,047 - 6 117 244 - 0 - -
Iowa - 160 5,840 6,804 - 1 2 2 - 0 - -
Kansas 19 114 2,251 5,512 - 2 6 44 - 0 - -
Minnesota 23 244 9,496 10,148 - 1 1 59 - 0 - -
Missouri 5 723 15,349 16,132 - 5 69 92 - 0 - -
Nebraska 34 108 3,355 3,434 - 2 20 25 - 0 - -
North Dakota - 50 1,455 1,642 - 2 6 5 - 0 - -
South Dakota - 71 2,537 2,375 - 2 13 17 - 0 - -
South Atlantic 1,079 3,338 132,369 140,878 9 19 526 709 - 1 1 1
Delaware - 92 1,493 1,451 - 2 6 8 - 0 - -
District of Columbia - 115 3,918 3,803 - 0 - 6 - 0 - -
Florida 500 1,047 43,958 39,781 9 10 226 201 - 1 1 -
Georgia 127 547 19,910 23,094 - 8 102 129 - 0 - 1
Maryland - 287 10,196 11,850 - 4 50 77 - 0 - -
North Carolina - 655 20,689 27,795 - 3 39 136 - 0 - -
South Carolina 250 515 16,130 16,383 - 3 41 48 - 0 - -
Virginia 193 340 14,486 14,968 - 4 47 71 - 0 - -
West Virginia 9 49 1,589 1,753 - 2 15 33 - 0 - -
East South Central 345 2,206 52,972 52,827 1 9 186 217 - 1 1 2
Alabama 183 392 15,702 14,151 - 5 76 55 - 0 - 1
Kentucky - 1,424 7,553 6,953 - 3 29 38 - 0 - 1
Mississippi 64 302 11,810 13,536 - 2 24 29 - 1 1 -
Tennessee 98 562 17,907 18,187 1 5 57 95 - 0 - -
West South Central 227 2,055 85,472 91,274 3 14 314 384 - 0 - 1
Arkansas 56 193 7,009 7,752 - 3 44 44 - 0 - -
Louisiana 157 386 15,663 15,196 - 5 68 61 - 0 - 1
Oklahoma 12 196 6,192 11,008 3 8 76 80 - 0 - -
Texas 2 1,383 56,608 57,318 - 8 126 199 - 0 - -
Mountain 178 1,101 46,975 42,931 3 10 215 259 - 1 2 2
Arizona 13 402 17,717 16,046 2 4 62 91 - 1 1 -
Colorado 107 282 10,304 9,513 - 3 41 51 - 0 - -
Idaho - 52 1,133 1,457 - 2 18 17 - 0 - -
Montana 8 42 1,391 1,674 - 2 16 13 - 0 - -
Nevada - 299 7,630 6,261 - 3 19 18 - 1 1 -
New Mexico 3 128 4,712 4,541 - 2 20 30 - 0 - 1
Utah 46 92 3,609 3,054 1 3 37 35 - 0 - 1
Wyoming 1 20 479 385 - 1 2 4 - 0 - -
Pacific 282 2,245 103,890 98,545 1 9 63 94 - 1 1 -
Alaska - 53 1,624 1,946 - 2 12 12 - 0 - -
California 91 1,934 88,742 77,238 - 2 17 20 - 0 - -
Hawaii - 25 - 1,459 - 1 3 11 - 0 - -
Oregon 79 156 6,230 6,305 1 2 31 51 - 1 1 -
Washington 112 187 7,294 11,597 - 6 - - - 0 - -
U.S. Territories - 18 262 390 - 0 - - - 0 - -
American Samoa - 0 - - - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - - - 0 - -
Puerto Rico - 18 262 390 - 0 - - - 0 - -
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 10 41 8 - 0 - - - 0 - -
Total 2,959 14,529 624,161 665,001 20 74 2,197 2,936 - 2 15 15
  • 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.