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

TABLE 2b. Annual reported cases* of notifiable diseases, by region and reporting area, United States, U.S. Territories, and Non-U.S. Residents, 2020
Data from some reporting areas may be incomplete due to the coronavirus disease 2019 (COVID-19) pandemic or due to post-reconciliation data updates that could not be confirmed or included in the final data set. Please see Note #9 and Note #10, respectively.
Reporting Area Arboviral diseases
La Crosse virus disease Powassan virus disease St. Louis encephalitis virus disease West Nile virus disease
Neuroinvasive Non-neuroinvasive Neuroinvasive Non-neuroinvasive Neuroinvasive Non-neuroinvasive Neuroinvasive Non-neuroinvasive
U.S. Residents, excluding U.S. Territories 84 4 19 1 14 2 558 172
New England 9 1 15 6
Connecticut 2 5 3
Maine 1 1
Massachusetts 6 1 9 3
New Hampshire
Rhode Island
Vermont
Middle Atlantic 6 1 28 8
New Jersey 1 3
New York (excluding New York City) 1 12 3
New York City 6 1
Pennsylvania 4 1 7 4
East North Central 34 3 4 76 9
Illinois 1 36 6
Indiana 1 3
Michigan 29 3
Ohio 30 3 3
Wisconsin 2 4 5
West North Central 30 24
Iowa 2 1
Kansas 6 2
Minnesota
Missouri 1
Nebraska 9 6
North Dakota 2 5
South Dakota 10 10
South Atlantic 30 1 58 9
Delaware
District of Columbia
Florida 44 7
Georgia 1 7 1
Maryland 1
North Carolina 21 1
South Carolina 1 4
Virginia 1 1 1
West Virginia 6 1
East South Central 20 11 5
Alabama 7 2
Kentucky 5
Mississippi 4 3
Tennessee 15
West South Central 3 122 26
Arkansas 1
Louisiana 14 4
Oklahoma 6 1
Texas 3 101 21
Mountain 6 39 26
Arizona 6 7 4
Colorado 17 18
Idaho 5 1
Montana 1
Nevada 1
New Mexico 7 1
Utah 1 1
Wyoming 1
Pacific 5 1 179 59
Alaska
California 5 1 179 56
Hawaii
Oregon 1
Washington 2
U.S. Territories
American Samoa
Commonwealth of Northern Mariana Islands
Guam
Puerto Rico
U.S. Virgin Islands
Non-U.S. Residents
Total 84 4 19 1 14 2 558 172
  • —: 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.
  • U: Unavailable — The data are unavailable.
  • * Cases are assigned to the reporting jurisdiction submitting the case to NNDSS if the case's country of usual residence is the United States, a U.S. territory, unknown, or country is 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 because this data element is only available in the HL7 generic version 2 and disease-specific message mapping guides. If a jurisdiction sends data in legacy formats, they are not able to send this information. For further information on interpretation of these data, see https://www.cdc.gov/nndss/data-statistics/readers-guides/.
  • † To calculate rates, use the populations provided in Table 8. Note that calculation of rates for the following conditions use population subsets presented in Table 8: Zika virus infection, congenital; Zika virus disease, congenital; Infant botulism; Congenital rubella syndrome; Perinatal Hepatitis B infection; Perinatal Hepatitis C infection; Haemophilus influenzae, invasive disease; Invasive pneumococcal disease; and Influenza-associated pediatric mortality. Also see Notes #3 and #7.