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

TABLE 2f. 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 Dengue virus infections § Diphtheria Ehrlichiosis and Anaplasmosis
Dengue Dengue-like illness Severe dengue Anaplasma phagocytophilum infection Ehrlichia chaffeensis infection Ehrlichia ewingii infection Undetermined ehrlichiosis/anaplasmosis
U.S. Residents, excluding U.S. Territories 441 9 1 3,637 1,178 21 50
New England 21 1,716 63 2
Connecticut 7 115 7 N N
Maine 443 2 2
Massachusetts 12 739 25
New Hampshire 1 137 5
Rhode Island 1 91 19
Vermont 191 5
Middle Atlantic 50 1,466 131 5 5
New Jersey 2 115 78 3
New York (excluding New York City) 12 1,056 37 2 4
New York City 32 105 15
Pennsylvania 4 190 1 1
East North Central 32 1 368 114 3 13
Illinois 17 1 15 30 1
Indiana 3 47 3
Michigan 2 17 1
Ohio 2 1 19
Wisconsin 8 335 17 12
West North Central 12 20 262 6 18
Iowa 1 7 2
Kansas 2 33
Minnesota
Missouri 3 2 219 6 18
Nebraska 4 8
North Dakota 9
South Dakota 2 2
South Atlantic 131 5 39 293 4 6
Delaware 1 5 28 1
District of Columbia 2 1
Florida 111 5 7 8 1
Georgia 8
Maryland 3 6 54 1
North Carolina 6 7 104
South Carolina 2 6
Virginia 6 12 87 1
West Virginia 2 3
East South Central 3 7 143 3
Alabama 2 10
Kentucky 1 63 2
Mississippi 1 5
Tennessee 2 4 65 1
West South Central 67 1 13 170 3
Arkansas 1 11 160 3
Louisiana 3 1
Oklahoma 2 1 1
Texas 61 1 1 8
Mountain 17 1 1 1
Arizona 4 1
Colorado 4 N N N N
Idaho 1 N N N N
Montana
Nevada 4
New Mexico 1 N N N N
Utah 3 1
Wyoming 1
Pacific 108 1 8 1 3
Alaska N N N N
California 87 7 1
Hawaii 5 N N N N
Oregon 9 2
Washington 7 1 1 1
U.S. Territories 670 83 29
American Samoa N N N N
Commonwealth of Northern Mariana Islands
Guam 2 N N N N
Puerto Rico 668 83 29 N N N N
U.S. Virgin Islands
Non-U.S. Residents
Total 1,111 92 29 1 3,637 1,178 21 50
  • —: 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.
  • § Counts include confirmed and probable dengue cases.