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 1hh. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 18, 2021 (Week 50)
Reporting Area Syphilis
Congenital Primary and secondary
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 - 44 1,641 2,044 121 1,000 41,268 39,358
New England - 2 8 12 - 28 852 1,015
Connecticut - 1 2 2 - 7 2 266
Maine - 0 - - - 4 54 33
Massachusetts - 1 4 9 - 23 622 589
New Hampshire - 0 - - - 4 71 48
Rhode Island - 1 1 1 - 9 95 76
Vermont - 1 1 - - 4 8 3
Middle Atlantic - 3 51 65 32 143 4,859 4,593
New Jersey - 3 29 24 - 27 610 714
New York (excluding New York City) - 2 12 27 29 41 1,158 741
New York City - 0 - - - 57 1,955 2,145
Pennsylvania - 1 10 14 3 35 1,136 993
East North Central - 6 99 97 - 124 4,275 3,981
Illinois - 2 19 26 - 48 1,017 1,386
Indiana - 0 - 6 - 23 538 485
Michigan - 3 32 27 - 28 888 754
Ohio - 3 40 32 - 44 1,346 1,025
Wisconsin - 2 8 6 - 20 486 331
West North Central - 4 39 51 3 65 2,251 1,666
Iowa - 2 8 1 - 13 270 181
Kansas - 1 6 8 - 4 53 145
Minnesota - 2 12 6 1 20 505 396
Missouri - 1 1 29 1 32 981 759
Nebraska - 1 - 1 - 8 156 101
North Dakota - 1 1 3 - 4 38 31
South Dakota - 2 11 3 1 10 248 53
South Atlantic - 11 243 331 18 236 8,855 8,715
Delaware - 1 1 2 - 6 95 94
District of Columbia - 0 - 3 - 10 199 234
Florida - 8 136 147 18 109 4,084 3,262
Georgia - 2 20 80 - 60 1,176 1,669
Maryland - 2 24 28 - 27 706 817
North Carolina - 3 36 30 - 45 1,353 1,246
South Carolina - 1 3 19 - 19 425 619
Virginia - 2 19 15 - 29 689 656
West Virginia - 1 4 7 - 8 128 118
East South Central - 5 101 98 6 77 2,441 2,374
Alabama - 3 35 18 5 24 698 511
Kentucky - 1 12 12 - 20 326 417
Mississippi - 3 26 37 1 21 656 719
Tennessee - 3 28 31 - 31 761 727
West South Central - 16 428 665 1 126 4,716 4,580
Arkansas - 3 39 21 - 29 897 475
Louisiana - 1 2 62 - 30 738 657
Oklahoma - 6 67 49 - 22 85 886
Texas - 14 320 533 1 85 2,996 2,562
Mountain - 9 192 227 6 117 3,628 3,402
Arizona - 7 116 115 - 46 1,449 1,380
Colorado - 2 19 21 - 40 650 610
Idaho - 1 5 2 1 7 79 60
Montana - 2 6 1 5 11 95 42
Nevada - 3 26 44 - 39 668 731
New Mexico - 2 19 42 - 26 552 444
Utah - 1 1 1 - 6 123 124
Wyoming - 0 - 1 - 2 12 11
Pacific - 15 480 498 55 249 9,391 9,032
Alaska - 1 4 7 - 9 148 165
California - 14 411 454 25 205 7,782 7,304
Hawaii - 1 - 11 - 4 - 174
Oregon - 3 27 17 22 31 896 587
Washington - 3 38 9 8 25 565 802
U.S. Territories - 1 2 4 - 9 189 263
American Samoa - 0 - - - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - -
Guam - 0 - - - 0 - -
Puerto Rico - 1 2 4 - 9 189 263
U.S. Virgin Islands - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - 1
Total - 44 1,643 2,048 121 1,008 41,457 39,622
  • 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.