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

TABLE 1l. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 5, 2020 (Week 49)
Reporting Area Ehrlichiosis and Anaplasmosis Giardiasis
Ehrlichia ewingii infection Undetermined ehrlichiosis/anaplasmosis
Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †Current weekPrevious 52 weeks Max †Cum YTD 2020 †Cum YTD 2019 †
U.S. Residents, excluding U.S. Territories - 3 13 43 1 6 82 176 32 501 7,083 13,918
New England - 0 - - - 2 3 5 3 27 597 983
Connecticut N NC N N N NC N N - 8 111 177
Maine - 0 - - - 2 3 2 1 7 123 134
Massachusetts - 0 - - - 0 - - 2 14 256 504
New Hampshire - 0 - - - 0 - - - 8 76 95
Rhode Island - 0 - - - 0 - - - 4 31 73
Vermont - 0 - - - 1 - 3 N NC N N
Middle Atlantic - 1 2 4 1 5 55 42 8 77 1,747 2,988
New Jersey - 1 2 4 - 0 - 7 - 10 90 416
New York (excluding New York City) - 0 - - 1 5 18 25 7 57 698 919
New York City - 0 - - - 0 - - 1 28 610 1,148
Pennsylvania - 0 - - - 3 37 10 - 17 349 505
East North Central - 1 3 1 - 2 13 40 - 63 949 1,631
Illinois - 0 - 1 - 1 1 - N NC N N
Indiana - 1 3 - - 0 - - - 5 50 190
Michigan - 0 - - - 0 - - - 13 225 400
Ohio - 0 - - - 0 - - - 49 267 419
Wisconsin - 0 - - - 2 12 40 - 29 407 622
West North Central - 2 5 25 - 1 4 70 - 27 348 1,382
Iowa - 0 - - - 0 - 4 - 7 72 261
Kansas - 0 - - - 0 - 3 - 3 30 130
Minnesota - 0 - - - 1 - 40 - 14 - 552
Missouri - 2 5 24 - 1 4 22 - 8 115 211
Nebraska - 0 - - - 0 - - - 5 72 91
North Dakota - 0 - 1 - 0 - 1 - 3 46 48
South Dakota - 0 - - - 0 - - - 3 13 89
South Atlantic - 1 2 4 - 2 6 15 5 42 1,025 2,315
Delaware - 0 - - - 0 - - - 2 19 35
District of Columbia - 0 - - - 0 - - - 4 17 73
Florida - 1 1 2 - 0 - - - 22 440 1,045
Georgia - 0 - - - 0 - - - 11 192 464
Maryland - 0 - 1 - 0 - 1 - 6 86 169
North Carolina - 0 - - - 0 - - N NC N N
South Carolina - 0 - - - 2 6 12 2 6 102 152
Virginia - 1 1 1 - 1 - 2 3 12 138 281
West Virginia - 0 - - - 0 - - - 4 31 96
East South Central - 0 - 3 - 1 1 3 - 8 97 150
Alabama - 0 - 1 - 0 - 1 - 8 97 150
Kentucky - 0 - 1 - 0 - 1 N NC N N
Mississippi - 0 - - - 0 - - N NC N N
Tennessee - 0 - 1 - 1 1 1 N NC N N
West South Central - 1 1 6 - 0 - 1 10 13 154 369
Arkansas - 1 1 6 - 0 - 1 10 6 68 123
Louisiana - 0 - - - 0 - - - 9 86 246
Oklahoma - 0 - - - 0 - - N NC N N
Texas - 0 - - - 0 - - N NC N N
Mountain - 0 - - - 0 - - 2 24 604 1,225
Arizona - 0 - - - 0 - - - 5 79 137
Colorado N NC N N N NC N N 2 14 198 475
Idaho N NC N N N NC N N - 6 70 172
Montana - 0 - - - 0 - - - 5 42 75
Nevada - 0 - - - 0 - - - 3 19 84
New Mexico N NC N N N NC N N - 4 41 66
Utah - 0 - - - 0 - - - 7 129 188
Wyoming - 0 - - - 0 - - - 3 26 28
Pacific - 0 - - - 0 - - 4 322 1,562 2,875
Alaska N NC N N N NC N N - 10 79 75
California - 0 - - - 0 - - 1 52 1,093 2,491
Hawaii N NC N N N NC N N - 3 21 42
Oregon - 0 - - - 0 - - 2 20 230 267
Washington - 0 - - - 0 - - 1 288 139 -
U.S. Territories - 0 - - - 0 - - - 2 15 47
American Samoa N NC N N N NC N N - 0 - -
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam N NC N N N NC N N - 0 - 1
Puerto Rico N NC N N N NC N N - 2 15 46
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 1 3 5
Total - 3 13 43 1 6 82 176 32 501 7,101 13,970
  • 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 2020 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://wwwn.cdc.gov/nndss/document/Users_guide_WONDER_tables_cleared_final.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 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://wwwn.cdc.gov/nndss/conditions/. 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://wwwn.cdc.gov/nndss/infectious-tables.html.
Acknowledgement:
  • 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.