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 September 25, 2021 (Week 38)
Reporting Area Ehrlichiosis and Anaplasmosis Giardiasis
Ehrlichia ewingii infection Undetermined ehrlichiosis/anaplasmosis
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 5 16 - 16 104 38 147 247 6,420 6,878
New England - 0 - - - 2 5 3 15 31 479 497
Connecticut N NC N N N NC N N - 8 69 91
Maine - 0 - - - 0 - 3 6 8 98 103
Massachusetts - 0 - - - 2 4 - 5 17 209 214
New Hampshire - 0 - - - 1 1 - 1 8 76 62
Rhode Island - 0 - - - 0 - - 3 5 27 27
Vermont - 0 - - - 0 - - N NC N N
Middle Atlantic - 2 2 3 - 12 80 3 49 78 1,620 1,459
New Jersey - 0 - 3 - 0 - - 2 9 187 151
New York (excluding New York City) - 2 2 - - 1 4 1 27 45 574 531
New York City - 0 - - - 1 2 - 20 23 558 483
Pennsylvania - 0 - - - 12 74 2 - 23 301 294
East North Central - 1 2 2 - 2 10 12 10 60 819 995
Illinois - 0 - - - 1 1 1 N NC N N
Indiana - 1 1 2 - 0 - - - 6 1 108
Michigan - 0 - - - 0 - - 2 15 194 270
Ohio - 0 - - - 0 - - - 44 266 244
Wisconsin - 1 1 - - 2 9 11 8 25 358 373
West North Central - 0 - 6 - 3 4 14 1 31 350 745
Iowa - 0 - - - 0 - - - 9 102 92
Kansas - 0 - - - 1 1 - - 6 42 79
Minnesota - 0 - - - 0 - - - 14 - 302
Missouri - 0 - 6 - 3 - 14 - 7 72 120
Nebraska - 0 - - - 0 - - 1 4 59 58
North Dakota - 0 - - - 1 1 - - 4 26 41
South Dakota - 0 - - - 1 2 - - 5 49 53
South Atlantic - 1 1 4 - 2 3 3 6 36 839 978
Delaware - 0 - 1 - 0 - - - 2 22 16
District of Columbia - 0 - - - 0 - - - 1 2 21
Florida - 0 - 1 - 0 - - - 23 370 470
Georgia - 0 - - - 0 - - - 9 81 152
Maryland - 1 1 1 - 1 1 - 2 7 84 71
North Carolina - 0 - - - 0 - - N NC N N
South Carolina - 0 - - - 2 2 3 3 8 105 80
Virginia - 0 - 1 - 0 - - 1 11 174 110
West Virginia - 0 - - - 0 - - - 3 1 58
East South Central - 0 - - - 1 - 1 2 9 109 81
Alabama - 0 - - - 0 - - 2 8 109 81
Kentucky - 0 - - - 1 - - N NC N N
Mississippi - 0 - - - 0 - - N NC N N
Tennessee - 0 - - - 0 - 1 N NC N N
West South Central - 1 - 1 - 0 - - 14 27 216 156
Arkansas - 1 - 1 - 0 - - 2 11 73 50
Louisiana - 0 - - - 0 - - 12 16 143 106
Oklahoma - 0 - - - 0 - - N NC N N
Texas - 0 - - - 0 - - N NC N N
Mountain - 0 - - - 0 - - 11 29 661 631
Arizona - 0 - - - 0 - - - 8 64 68
Colorado N NC N N N NC N N 9 14 278 203
Idaho N NC N N N NC N N 1 6 89 87
Montana - 0 - - - 0 - - - 3 26 59
Nevada - 0 - - - 0 - - - 4 35 40
New Mexico N NC N N N NC N N - 3 17 36
Utah - 0 - - - 0 - - 1 9 139 113
Wyoming - 0 - - - 0 - - - 2 13 25
Pacific - 0 - - - 1 2 2 39 51 1,327 1,336
Alaska N NC N N N NC N N 2 7 35 53
California - 0 - - - 0 - 1 24 39 925 968
Hawaii N NC N N N NC N N - 2 16 24
Oregon - 0 - - - 1 2 1 12 18 221 166
Washington - 0 - - - 0 - - 1 9 130 125
U.S. Territories - 0 - - - 0 - - - 3 13 24
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 - 3 13 23
U.S. Virgin Islands - 0 - - - 0 - - - 0 - -
Non-U.S. Residents - 0 - - - 0 - - - 1 1 3
Total - 2 5 16 - 16 104 38 147 248 6,434 6,905
  • 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 years 2020 and 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.