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

TABLE 1u. Weekly cases* of notifiable diseases, United States, U.S. Territories, and Non-U.S. Residents weeks ending December 7, 2019 (week 49)
Reporting Area Legionellosis Leptospirosis Listeriosis §
Current
week		 Previous 52
weeks Max †		 Cum YTD
2019 †		 Cum YTD
2018 †		 Current
week		 Previous 52
weeks Max †		 Cum YTD
2019 †		 Cum YTD
2018 †		 Current
week		 Previous 52
weeks Max †		 Cum YTD
2019 †		 Cum YTD
2018 †
U.S. Residents, excluding U.S. Territories 45 328 7,452 9,381 - 7 71 83 1 33 700 801
New England 1 22 403 741 - 0 - 1 - 5 45 76
Connecticut - 8 99 196 - 0 - - - 2 13 18
Maine - 3 28 33 - 0 - - - 1 3 7
Massachusetts - 13 190 360 - 0 - - - 3 22 30
New Hampshire - 4 29 76 - 0 - - - 1 4 9
Rhode Island 1 11 47 59 - 0 - 1 - 1 2 7
Vermont - 1 10 17 - 0 - - - 1 1 5
Middle Atlantic 14 92 1,623 2,337 - 1 8 13 1 8 140 181
New Jersey - 8 94 354 - 0 - - - 1 6 36
New York (excluding New York City) 9 48 567 728 N NC N N 1 4 56 56
New York City 2 39 427 635 - 1 5 9 - 3 38 35
Pennsylvania 3 30 535 620 - 1 3 4 - 3 40 54
East North Central 2 115 1,899 2,559 - 1 8 14 - 7 81 104
Illinois - 43 570 498 - 1 2 2 - 3 26 21
Indiana - 6 - 239 - 0 - - - 1 - 16
Michigan 1 25 474 614 - 1 3 1 - 3 25 22
Ohio 1 68 750 892 - 0 - 3 - 3 24 30
Wisconsin - 8 105 316 - 1 3 8 - 1 6 15
West North Central 1 32 441 479 - 1 5 2 - 2 21 38
Iowa - 8 62 62 N NC N N - 1 6 8
Kansas - 5 36 40 - 0 - - - 1 1 6
Minnesota 1 7 116 149 - 0 - - - 0 - 10
Missouri - 18 155 147 - 1 2 2 - 2 12 13
Nebraska - 6 43 39 - 1 3 - - 1 2 -
North Dakota - 2 9 10 N NC N N - 0 - -
South Dakota - 3 20 32 - 0 - - - 0 - 1
South Atlantic 17 141 1,390 1,635 - 2 12 15 - 9 160 183
Delaware - 4 31 45 - 0 - - - 1 2 5
District of Columbia - 3 33 55 - 0 - - - 0 - 2
Florida 10 17 423 460 - 1 7 7 - 4 43 43
Georgia - 9 104 171 - 1 1 1 - 4 19 30
Maryland 2 16 242 345 - 1 1 5 - 3 21 17
North Carolina - 113 281 163 - 1 2 - - 3 29 32
South Carolina - 6 64 53 - 0 - - - 3 17 14
Virginia 5 14 172 216 - 1 - 2 - 4 25 34
West Virginia - 7 40 127 - 1 1 - - 1 4 6
East South Central - 20 338 413 - 1 1 1 - 3 38 33
Alabama - 6 71 74 - 0 - 1 - 1 6 10
Kentucky - 7 93 138 - 1 1 - - 1 8 2
Mississippi - 4 37 39 N NC N N - 1 3 6
Tennessee - 10 137 162 N NC N N - 2 21 15
West South Central 8 46 522 481 - 1 1 1 - 6 71 67
Arkansas 3 4 61 43 N NC N N - 1 4 4
Louisiana - 6 48 36 - 1 1 1 - 3 8 7
Oklahoma - 22 50 35 - 0 - - - 3 10 8
Texas 5 24 363 367 N NC N N - 5 49 48
Mountain 1 13 281 281 - 1 1 2 - 3 34 21
Arizona 1 6 90 81 - 0 - - - 2 10 6
Colorado - 6 85 106 N NC N N - 2 11 5
Idaho - 3 23 14 N NC N N - 1 5 1
Montana - 1 9 10 - 0 - - - 0 - -
Nevada - 2 21 15 - 0 - - - 1 6 2
New Mexico - 2 16 21 - 0 - - - 0 - 4
Utah - 3 34 32 - 1 1 2 - 1 2 2
Wyoming - 1 3 2 - 0 - - - 0 - 1
Pacific 1 69 555 455 - 5 35 34 - 15 110 98
Alaska - 1 2 3 - 0 - - - 1 1 1
California - 19 426 405 - 1 6 8 - 6 78 82
Hawaii - 2 9 17 - 3 25 21 - 1 10 6
Oregon - 4 53 30 - 1 2 5 - 2 10 9
Washington 1 54 65 - - 3 2 - - 15 11 -
U.S. Territories - 0 - - - 2 - 88 - 0 - 2
American Samoa N NC N N - 0 - - N NC N N
Commonwealth of Northern Mariana Islands - 0 - - - 0 - - - 0 - -
Guam - 0 - - - 0 - 7 - 0 - -
Puerto Rico - 0 - - - 2 - 81 - 0 - 2
U.S. Virgin Islands - 0 - - - 1 - - - 0 - -
Non-U.S. Residents - NC - NP - NC - NP - NC - NP
Total 45 328 7,452 9,381 - 7 71 171 1 33 700 803
  • 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 2019 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).
  • § Before 2019, listeriosis cases in neonates less than or equal to 60 days of age were counted as one case in a mother-infant pair. Beginning in 2019, maternal and neonatal listeriosis cases are being counted separately.
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://www.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.