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

TABLE 1i. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents week ending December 26, 2020 (Week 52)
Reporting Area Cryptosporidiosis Cyclosporiasis
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 28 630 5,627 13,975 3 240 2,157 4,704
New England 3 20 314 539 1 5 38 360
Connecticut 1 4 32 80 - 2 7 103
Maine - 4 56 71 - 0 - -
Massachusetts 2 6 113 231 1 4 24 211
New Hampshire - 2 36 65 - 2 3 9
Rhode Island - 3 21 63 - 1 4 31
Vermont - 11 56 29 - 0 - 6
Middle Atlantic 8 45 819 1,684 - 34 245 761
New Jersey - 6 66 288 - 19 66 263
New York (excluding New York City) 6 31 362 486 - 10 60 305
New York City - 13 130 397 - 17 119 193
Pennsylvania 2 13 261 513 N NC N N
East North Central 2 43 1,021 2,557 - 109 451 573
Illinois - 11 197 407 - 95 307 164
Indiana - 5 39 321 - 0 - 31
Michigan - 6 38 415 - 3 16 127
Ohio 2 19 324 685 - 14 55 142
Wisconsin - 24 423 729 - 17 73 109
West North Central - 30 709 1,982 - 116 516 388
Iowa - 17 318 558 - 103 258 121
Kansas - 4 48 139 - 6 33 23
Minnesota - 4 - 487 - 0 - 137
Missouri - 13 171 400 - 37 136 61
Nebraska - 5 103 193 - 30 88 36
North Dakota - 2 23 38 N NC N N
South Dakota - 5 46 167 - 1 1 10
South Atlantic 3 57 1,009 2,194 - 36 228 1,187
Delaware - 3 21 39 - 1 1 5
District of Columbia - 2 9 31 - 0 - 37
Florida - 14 182 662 - 16 68 543
Georgia 1 20 334 364 - 18 101 77
Maryland - 6 58 107 - 3 16 220
North Carolina - 9 143 286 - 1 1 76
South Carolina - 4 81 111 - 3 14 24
Virginia 2 31 160 520 - 12 26 201
West Virginia - 5 21 74 - 1 1 4
East South Central 3 17 385 937 - 15 74 72
Alabama 1 8 128 225 - 1 3 5
Kentucky 2 8 92 341 - 5 16 1
Mississippi - 3 18 124 N NC N N
Tennessee - 9 147 247 - 11 55 66
West South Central 7 240 482 1,881 2 59 537 1,171
Arkansas 5 5 60 142 - 2 11 34
Louisiana - 6 72 355 - 16 35 100
Oklahoma - 36 78 194 N NC N N
Texas 2 196 272 1,190 2 53 491 1,037
Mountain - 21 405 967 - 9 56 120
Arizona - 5 78 143 - 2 3 17
Colorado - 7 115 269 - 6 35 58
Idaho - 2 9 131 N NC N N
Montana - 3 39 72 - 1 1 2
Nevada - 3 11 50 N NC N N
New Mexico - 3 29 83 - 1 4 16
Utah - 6 113 197 - 3 12 22
Wyoming - 1 11 22 - 1 1 5
Pacific 2 246 483 1,234 - 17 12 72
Alaska - 2 6 12 - 1 2 -
California - 13 239 727 - 2 10 50
Hawaii - 1 5 9 - 0 - -
Oregon - 5 90 254 - 0 - 5
Washington 2 232 143 232 - 17 - 17
U.S. Territories - 0 - - - 0 - -
American Samoa N NC N N N NC N N
Commonwealth of Northern Mariana Islands - 0 - - - 0 - -
Guam - 0 - - - 0 - -
Puerto Rico - 0 - - - 0 - -
U.S. Virgin Islands - 0 - - - 0 - -
Non-U.S. Residents - 1 2 - - 0 - -
Total 28 630 5,629 13,975 3 240 2,157 4,704
  • 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.