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

TABLE 4. Annual reported cases of notifiable diseases and rates, by age group, United States, excluding U.S. Territories and Non-U.S. Residents, 2022
Disease <1 yr 1-4 yrs 5-14 yrs 15-24 yrs 25-39 yrs 40-64 yrs ≥65 yrs Age not stated Total
No. Rate No. Rate No. Rate No. Rate No. Rate No. Rate No. Rate No. No.
Anthrax — — — — — — — — — — — — — — — —
Arboviral diseases
Chikungunya virus disease — — 3 0.02 1 0.00 14 0.03 24 0.04 32 0.03 7 0.01 — 81
Eastern equine encephalitis virus disease
Neuroinvasive — — — — — — — — — — — — 1 0.00 — 1
Non-neuroinvasive — — — — — — — — — — — — — — — —
Jamestown Canyon virus disease
Neuroinvasive — — — — — — — — 2 0.00 4 0.00 5 0.01 — 11
Non-neuroinvasive — — — — — — — — 1 0.00 — — — — — 1
La Crosse virus disease
Neuroinvasive — — 4 0.03 13 0.03 1 0.00 — — — — 1 0.00 — 19
Non-neuroinvasive — — 1 0.01 1 0.00 1 0.00 — — — — — — — 3
Powassan virus disease
Neuroinvasive 2 0.05 3 0.02 — — 1 0.00 3 0.00 12 0.01 21 0.04 — 42
Non-neuroinvasive — — 2 0.01 — — — — — — 1 0.00 1 0.00 — 4
St. Louis encephalitis virus disease
Neuroinvasive — — — — — — 2 0.00 3 0.00 7 0.01 16 0.03 — 28
Non-neuroinvasive — — — — — — — — 1 0.00 3 0.00 2 0.00 — 6
West Nile virus disease
Neuroinvasive — — 1 0.01 9 0.02 16 0.04 57 0.08 321 0.31 424 0.73 — 828
Non-neuroinvasive — — 2 0.01 5 0.01 10 0.02 42 0.06 148 0.14 103 0.18 — 310
Western equine encephalitis virus disease
Neuroinvasive — — — — — — — — — — — — — — — —
Non-neuroinvasive — — — — — — — — — — — — — — — —
Babesiosis
Total 4 0.13 9 0.07 31 0.09 39 0.10 130 0.22 803 0.90 1,095 2.20 — 2,111
Confirmed 4 0.13 7 0.05 23 0.07 32 0.08 102 0.17 675 0.75 969 1.94 — 1,812
Probable — — 2 0.02 8 0.02 7 0.02 28 0.05 128 0.14 126 0.25 — 299
Botulism
Total 162 4.40 2 0.01 1 0.00 — — 7 0.01 18 0.02 7 0.01 — 197
Foodborne — — — — 1 0.00 — — 1 0.00 2 0.00 2 0.00 — 6
Infant 161 4.37 2 — — — — — — — — — — — — 163
Other (wound & unspecified) 1 0.03 — — — — — — 6 0.01 16 0.02 5 0.01 — 28
Brucellosis — — 1 0.01 7 0.02 9 0.02 26 0.04 50 0.05 33 0.06 — 126
Campylobacteriosis 1,657 44.99 5,184 34.90 4,293 10.50 6,162 13.90 12,086 17.83 21,433 20.62 15,774 27.29 24 66,613
Candida auris, clinical * — — 1 0.01 1 0.00 21 0.06 86 0.16 403 0.48 488 1.06 1 1,001
Carbapenemase-producing carbapenem-resistant Enterobacteriaceae 6 0.21 12 0.10 14 0.04 45 0.13 184 0.35 1,050 1.29 1,504 3.32 3 2,818
Chancroid — — — — — — 1 0.00 — — — — — — — 1
Chlamydia trachomatis infection † 405 11.00 115 0.77 10,609 25.94 952,516 2,148.13 571,833 843.79 106,808 102.75 3,572 6.18 3,726 1,649,584
Cholera — — 4 0.03 — — 1 0.00 — — 6 0.01 1 0.00 — 12
Coccidioidomycosis 8 0.51 49 0.78 417 2.38 1,208 6.39 3,226 11.27 7,235 16.58 5,452 22.39 17 17,612
Coronavirus Disease 2019 (COVID-19)
Total 603,287 16,379.81 1,405,101 9,458.62 4,380,477 10,710.47 5,925,706 13,363.77 10,406,161 15,355.28 13,877,931 13,351.29 6,429,096 11,123.99 105,036 43,132,795
Confirmed 495,892 13,463.94 1,141,450 7,683.82 3,362,913 8,222.48 4,673,644 10,540.10 8,450,094 12,468.92 11,067,202 10,647.22 5,013,200 8,674.13 73,009 34,277,404
Probable § 107,395 2,915.88 263,651 1,774.80 1,017,564 2,487.99 1,252,062 2,823.68 1,956,067 2,886.36 2,810,729 2,704.07 1,415,896 2,449.87 32,027 8,855,391
Cryptosporidiosis
Total 121 3.29 1,126 7.58 995 2.43 1,571 3.54 3,020 4.46 3,381 3.25 2,389 4.13 3 12,606
Confirmed 103 2.80 922 6.21 822 2.01 1,263 2.85 2,476 3.65 2,708 2.61 1,875 3.24 — 10,169
Probable 18 0.49 204 1.37 173 0.42 308 0.69 544 0.80 673 0.65 514 0.89 3 2,437
Cyclosporiasis 2 0.06 7 0.05 27 0.07 159 0.39 767 1.22 1,419 1.48 703 1.32 7 3,091
Dengue virus infections 
Dengue 1 0.03 6 0.04 67 0.16 113 0.25 276 0.41 764 0.74 227 0.39 — 1,454
Dengue-like illness — — — — 1 0.00 1 0.00 2 0.00 18 0.02 11 0.02 — 33
Severe dengue — — 1 0.01 2 0.00 4 0.01 4 0.01 26 0.03 6 0.01 — 43
Diphtheria — — — — — — — — — — — — 1 0.00 — 1
Ehrlichiosis and Anaplasmosis
Anaplasma phagocytophilum infection — — 15 0.10 97 0.25 90 0.21 346 0.53 2,062 2.06 3,038 5.45 3 5,651
Ehrlichia chaffeensis infection 1 0.03 11 0.08 37 0.09 54 0.13 134 0.21 643 0.64 688 1.23 1 1,569
Ehrlichia ewingii infection — — — — — — — — 1 0.00 10 0.01 14 0.03 — 25
Undetermined ehrlichiosis/anaplasmosis — — 2 0.01 4 0.01 5 0.01 8 0.01 37 0.04 39 0.07 — 95
Giardiasis 66 2.29 992 8.53 1,448 4.53 1,299 3.72 3,253 6.06 4,507 5.43 2,251 4.77 3 13,819
Gonorrhea 124 3.37 111 0.75 2,958 7.23 260,649 587.82 292,898 432.20 87,262 83.95 3,433 5.94 575 648,010
Haemophilus influenzae, invasive disease
All ages, all serotypes 364 9.88 320 2.15 165 0.40 187 0.42 505 0.75 1,312 1.26 2,483 4.30 — 5,336
Age <5 years
Serotype b 11 0.30 6 0.04 — — — — — — — — — — — 17
Non-b serotype 68 1.85 72 0.48 — — — — — — — — — — — 140
Nontypeable 134 3.64 120 0.81 — — — — — — — — — — — 254
Unknown serotype 151 4.10 122 0.82 — — — — — — — — — — — 273
Hansen's disease — — — — 1 0.00 2 0.00 22 0.04 17 0.02 20 0.04 — 62
Hantavirus infection, non-hantavirus pulmonary syndrome ** — — — — — — — — — — — — — — — —
Hantavirus pulmonary syndrome — — — — 3 0.01 2 0.00 — — 4 0.00 2 0.00 — 11
Hemolytic uremic syndrome post-diarrheal 12 0.35 135 0.97 88 0.23 19 0.05 12 0.02 21 0.02 25 0.05 — 312
Hepatitis, Viral Disease ††
Hepatitis A — — 12 0.08 27 0.07 152 0.34 908 1.34 907 0.87 258 0.45 — 2,264
Hepatitis B
Acute 1 0.03 — — 2 0.00 81 0.18 466 0.69 1,274 1.23 300 0.52 2 2,126
Perinatal infection 8 NC 5 NC — — — — — — — — — — — 13
Hepatitis C
Acute 1 0.03 3 0.02 6 0.02 428 0.99 2,521 3.81 2,140 2.11 522 0.93 7 5,628
Confirmed 1 0.03 3 0.02 5 0.01 371 0.86 2,203 3.33 1,837 1.81 422 0.75 6 4,848
Probable — — — — 1 0.00 57 0.13 318 0.48 303 0.30 100 0.18 1 780
Perinatal infection 59 NC 138 NC — — — — — — — — — — — 197
Human immunodeficiency virus diagnoses 35 0.95 11 0.07 38 0.09 7,027 15.85 18,792 27.73 10,888 10.47 872 1.51 — 37,663
Influenza-associated pediatric mortality 16 0.43 33 0.22 57 0.14 10 0.08 — — — — — — — 116
Invasive pneumococcal disease §§
All ages 258 9.30 800 7.15 632 2.06 321 0.97 1,982 3.95 7,254 9.30 7,100 16.17 15 18,362
Confirmed 249 8.98 772 6.90 591 1.93 308 0.93 1,936 3.86 7,085 9.09 6,961 15.85 14 17,916
Probable 9 0.32 28 0.25 41 0.13 13 0.04 46 0.09 169 0.22 139 0.32 1 446
Age <5 years 272 9.15 845 7.03 — — — — — — — — — — — 1,117
Confirmed 263 8.84 815 6.78 — — — — — — — — — — — 1,078
Probable 9 0.30 30 0.25 — — — — — — — — — — — 39
Legionellosis 4 0.11 3 0.02 9 0.02 51 0.12 528 0.78 3,356 3.23 3,561 6.16 — 7,512
Leptospirosis — — — — 2 0.01 6 0.02 19 0.04 27 0.03 8 0.02 — 62
Listeriosis ¶¶
Total 50 1.36 5 0.03 4 0.01 32 0.07 95 0.14 198 0.19 579 1.00 — 963
Confirmed 46 1.25 5 0.03 4 0.01 27 0.06 73 0.11 191 0.18 556 0.96 — 902
Probable 4 0.11 — — — — 5 0.01 22 0.03 7 0.01 23 0.04 — 61
Lyme disease ***
Total 10 0.27 1,091 7.38 6,441 15.81 4,822 10.92 8,217 12.18 22,655 21.89 19,183 33.36 9 62,428
Confirmed 1 0.03 78 0.53 462 1.13 169 0.38 296 0.44 637 0.62 423 0.74 — 2,066
Probable 9 0.25 1,013 6.85 5,979 14.68 4,653 10.53 7,921 11.74 22,018 21.27 18,760 32.63 9 60,362
Malaria — — 63 0.43 186 0.46 239 0.55 536 0.80 752 0.74 152 0.27 4 1,932
Measles †††
Total 25 0.68 65 0.44 26 0.06 4 0.01 1 0.00 — — — — — 121
Indigenous 24 0.65 55 0.37 15 0.04 3 0.01 1 0.00 — — — — — 98
Imported 1 0.03 10 0.07 11 0.03 1 0.00 — — — — — — — 23
Meningococcal disease
All serogroups 14 0.38 14 0.09 9 0.02 48 0.11 77 0.11 107 0.10 43 0.07 — 312
Serogroups ACWY 8 0.22 4 0.03 5 0.01 17 0.04 50 0.07 62 0.06 22 0.04 — 168
Serogroup B 2 0.05 4 0.03 1 0.00 14 0.03 11 0.02 14 0.01 1 0.00 — 47
Other serogroups — — 1 0.01 2 0.00 6 0.01 1 0.00 5 0.00 5 0.01 — 20
Unknown serogroup 4 0.11 5 0.03 1 0.00 11 0.02 15 0.02 26 0.03 15 0.03 — 77
Mpox §§§ 14 0.38 16 0.11 22 0.05 2,891 6.52 17,500 25.82 9,180 8.83 197 0.34 1 29,821
Mumps 6 0.16 83 0.56 97 0.24 30 0.07 53 0.08 69 0.07 47 0.08 1 386
Novel Influenza A virus infections — — 1 0.01 1 0.00 — — 1 0.00 — — — — 9 12
Pertussis 318 8.63 583 3.92 537 1.31 234 0.53 357 0.53 648 0.62 365 0.63 2 3,044
Plague ¶¶¶ — — — — — — — — — — — — — — — —
Poliomyelitis, paralytic — — — — — — 1 0.00 — — — — — — — 1
Poliovirus infection, nonparalytic — — — — — — — — — — — — — — — —
Psittacosis — — — — — — 1 0.00 — — 3 0.00 3 0.01 — 7
Q fever
Total 1 0.03 — — — — 3 0.01 26 0.04 101 0.10 63 0.11 — 194
Acute 1 0.03 — — — — 3 0.01 25 0.04 90 0.09 52 0.09 — 171
Chronic — — — — — — — — 1 0.00 11 0.01 11 0.02 — 23
Rabies
Human — — — — — — — — — — — — — — — —
Rubella — — — — — — 2 0.00 2 0.00 3 0.00 — — — 7
Rubella, congenital syndrome — — — — — — — — — — — — — — — —
Salmonella Paratyphi infection **** 1 0.03 7 0.05 26 0.06 23 0.05 36 0.05 27 0.03 10 0.02 — 130
Salmonella Typhi infection †††† 3 0.08 47 0.32 117 0.29 68 0.15 113 0.17 72 0.07 22 0.04 — 442
Salmonellosis (excluding S. Typhi infection and S. Paratyphi infection) §§§§ 5,460 148.24 7,033 47.34 4,892 11.96 4,366 9.85 7,584 11.19 14,921 14.35 11,843 20.49 30 56,129
Severe acute respiratory syndrome-associated coronavirus disease — — — — — — — — — — — — — — — —
Shiga toxin-producing Escherichia coli (STEC) 528 14.34 2,393 16.11 1,623 3.97 2,181 4.92 2,978 4.39 3,655 3.52 3,042 5.26 6 16,406
Shigellosis 105 2.85 1,033 6.95 966 2.36 1,380 3.11 4,339 6.40 4,893 4.71 2,018 3.49 10 14,744
Smallpox — — — — — — — — — — — — — — — —
Spotted fever rickettsiosis
Total 2 0.05 14 0.09 46 0.11 71 0.16 246 0.37 560 0.54 353 0.61 — 1,292
Confirmed — — 3 0.02 2 0.00 2 0.00 9 0.01 18 0.02 13 0.02 — 47
Probable 2 0.05 11 0.07 44 0.11 69 0.16 237 0.35 542 0.52 340 0.59 — 1,245
Streptococcal toxic shock syndrome 3 0.13 5 0.05 14 0.05 4 0.01 47 0.11 147 0.22 113 0.30 — 333
Syphilis
Total, all stages ¶¶¶¶ 3,762 102.14 7 0.05 154 0.38 33,029 74.49 106,070 156.52 59,988 57.71 4,184 7.24 29 207,223
Congenital ***** 3,755 100.20 — — — — — — — — — — — — — 3,755
Primary and secondary 4 0.11 2 0.01 45 0.11 10,507 23.70 29,955 44.20 17,433 16.77 1,058 1.83 6 59,010
Tetanus — — 1 0.01 6 0.01 2 0.00 7 0.01 6 0.01 4 0.01 — 26
Toxic shock syndrome (other than Streptococcal) — — 2 0.02 10 0.03 7 0.02 4 0.01 3 0.00 5 0.01 — 31
Trichinellosis — — — — 1 0.00 — — 2 0.00 5 0.01 1 0.00 — 9
Tuberculosis 62 1.68 139 0.94 163 0.40 845 1.91 1,865 2.75 3,005 2.89 2,252 3.90 — 8,331
Tularemia — — 9 0.06 16 0.04 10 0.02 25 0.04 66 0.06 41 0.07 — 167
Vancomycin-intermediate Staphylococcus aureus 1 0.03 2 0.02 3 0.01 4 0.01 9 0.02 32 0.04 31 0.07 — 82
Vancomycin-resistant Staphylococcus aureus ††††† — — — — — — — — — — 1 0.00 1 0.00 — 2
Varicella morbidity 467 15.22 832 6.71 1,411 4.12 438 1.18 562 1.00 339 0.39 54 0.11 245 4,348
Varicella mortality U U U U U U U U U U U U U U U U
Vibriosis
Total 23 0.63 60 0.41 128 0.32 196 0.45 527 0.79 1,173 1.15 929 1.63 2 3,038
Confirmed 6 0.17 18 0.12 99 0.25 113 0.26 252 0.38 572 0.56 413 0.73 1 1,474
Probable 17 0.47 42 0.29 29 0.07 83 0.19 275 0.41 601 0.59 516 0.91 1 1,564
Viral hemorrhagic fevers
Chapare virus §§§§§ — — — — — — — — — — — — — — — —
Crimean-Congo hemorrhagic fever virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Ebola virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Guanarito virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Junin virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Lassa virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Lujo virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Machupo virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Marburg virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Sabia virus ¶¶¶¶¶ — — — — — — — — — — — — — — — —
Yellow fever — — — — — — — — — — — — — — — —
Zika virus
Zika virus disease, congenital ****** 1 0.03 — — — — — — — — — — — — — 1
Zika virus disease, non-congenital — — — — — — 1 0.00 2 0.00 2 0.00 — — — 5
Zika virus infection, congenital ****** — — — — — — — — — — — — — — — —
Zika virus infection, non-congenital — — — — — — — — 2 0.00 — — — — — 2
  • —: No reported cases — The reporting jurisdiction did not submit any cases to CDC.
  • NC: Not Calculated — There is insufficient data available to support this statistic.
  • U: Unavailable — The data are unavailable.
  • * Note that Candida auris colonization/screening cases are not included in this table. Additionally, there may be case count discrepancies of Candida auris clinical cases reported by the NNDSS and the CDC's Mycotic Diseases Branch due to differences in data sources, reporting and aggregation methods. Please refer to the Mycotic Diseases Branch's Tracking C. auris | Candida auris (C. auris) | CDC for Candida auris case data reported by jurisdictions. These data are submitted to the CDC separately of NNDSS by jurisdictions and are published by location of the facility. Please also see Note #8.
  • † Beginning in January 2022, only confirmed cases are published to align with the approved CSTE position statement 21-ID-06, whereas in previous years, all case classification statuses were published. This change may cause a decrease in published case counts when compared to previous years.
  • § Of the reporting areas that submitted 2022 aggregate COVID-19 data to CDC, three did not submit probable cases. American Samoa, New York (excluding New York City), and U.S. Virgin Islands did not collect probable cases.
  • ¶ Counts include confirmed and probable dengue cases.
  • ** Case counts may include Old World hantavirus infections, such as Seoul virus.
  • †† Chronic hepatitis B and chronic hepatitis C data are not included in NNDSS tables but reported case counts are included in the annual Viral Hepatitis Surveillance Report, 2022, published online by CDC's Division of Viral Hepatitis, available at https://www.cdc.gov/hepatitis/statistics/SurveillanceRpts.htm.
  • §§ Counts include drug resistant and susceptible cases of Invasive Pneumococcal Disease. This condition was previously named Streptococcus pneumoniae invasive disease and cases were reported to CDC using different event codes to specify whether the cases were drug resistant or in a defined age group, such as <5 years.
  • ¶¶ Before 2019, probable cases were not reported, and cases in neonates ≤60 days of age were counted as one case in a mother-infant pair. Beginning in 2019, confirmed and probable cases are being reported, and maternal and neonatal cases are being counted separately.
  • *** For surveillance reporting purposes, jurisdictions are grouped into high- and low-incidence categories. Confirmed cases are only reported from low-incidence jurisdictions; however, probable cases are reported from both high- and low-incidence jurisdictions. For more information on jurisdiction classifications, visit https://www.cdc.gov/lyme. Currently, high-incidence jurisdictions include Connecticut, Delaware, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New Jersey, New York (excluding New York City), New York City, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and the District of Columbia.
  • ††† Measles is considered imported if the disease was acquired outside of the United States and is considered indigenous if the disease was acquired anywhere within the United States or it is not known where the disease was acquired.
  • §§§ CSTE adopted Mpox as a nationally notifiable condition on June 23, 2022 and beginning August 1, 2022 confirmed and probable cases are published to align with the CSTE position statement 22-ID-10. Case classifications for cases reported prior to August 1, 2022 should not have been retroactively changed based on the case definition in the CSTE position statement 22-ID-10.
  • ¶¶¶ Beginning in 2020, confirmed and probable plague cases began to be combined and published.
  • **** Beginning in January 2019, cases began to be reported as Salmonella Paratyphi infection. In 2018, cases were reported as paratyphoid fever. Prior to 2018, cases of paratyphoid fever were considered salmonellosis.
  • ¶¶¶¶¶ Beginning in January 2022, confirmed and suspect cases combined are published to align with the approved CSTE position statement 21-ID-04, whereas in previous years, only confirmed cases were published.
  • †††† Beginning in January 2019, cases began to be reported as Salmonella Typhi infection. In previous years, cases were reported as typhoid fever.
  • §§§§ Beginning in January 2019, cases began to be reported as salmonellosis (excluding Salmonella Typhi infection and Salmonella Paratyphi infection). In 2018, cases were reported as salmonellosis (excluding paratyphoid fever and typhoid fever). Prior to 2018, cases of paratyphoid fever were considered salmonellosis.
  • ¶¶¶¶ Includes the following categories: primary; secondary; early non-primary non-secondary (includes cases previously reported as early latent); unknown duration or late (includes cases previously reported as late latent syphilis and cases previously reported as late syphilis with clinical manifestations) and congenital syphilis.
  • ***** Congenital syphilis cases are usually assigned to the mother's state of residence at the time of delivery. Data for congenital syphilis are aggregated by the infant's year of birth.
  • ††††† Vancomycin-resistant Staphylococcus aureus cases reported in this table may not have been verified by CDC. CDC verified 0 vancomycin-resistant Staphylococcus aureus cases in 2022.
  • §§§§§ Beginning in January 2022, Chapare virus was added as a nationally notifiable condition, and confirmed and suspect cases combined are published to align with the approved CSTE position statement 21-ID-04.
  • ****** Data reported to ArboNET using the national surveillance case definition for congenital Zika virus infection (CSTE Position Statement 16-ID-01).
Notes:
  1. These are annual 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. Cases are reported by state health departments to CDC weekly. Because source datasets may be updated as additional information is received, statistics in publications based on that source data may differ from what is presented in these tables. Source datasets for the 2022 annual tables were officially closed on March 29, 2024.
  2. The list of national notifiable Infectious diseases and conditions for 2022 and their national surveillance case definitions are available by navigating to the Surveillance Case Definitions | CDC web page, selecting "2022" for the notifiable condition list year, checking "Infectious" conditions, and clicking "Get Notifiable List by Year". Publication criteria for the finalized 2022 data are available at https://wonder.cdc.gov/nndss/documents/NNDSS_Publication_Criteria_2022.pdf. See also Guide to Interpreting Provisional and Finalized NNDSS Data.
  3. Population estimates for incidence rates are July 1st, 2022 postcensal estimates of the resident population of the United States for July 1, 2020, to July 1, 2022, by year, county, single year of age (range: 0 to 85+ years), bridged-race (American Indian or Alaska Native, Asian or Pacific Islander, Black or African American, White), Hispanic ethnicity (Hispanic or Latino, not Hispanic or Latino), and sex (Female, Male), prepared under a collaborative arrangement with the U.S. Census Bureau and the National Cancer Institute (NCI). The "Vintage 2022" population estimates for years 2020-2022 were released March 2024 by the National Cancer Institute at https://seer.cancer.gov/popdata/. For more information, see https://seer.cancer.gov/popdata/singleages.html Population estimates for territories are the 2022 mid-year estimates from the U.S. Census Bureau International Data Base, accessed on May 02, 2024, at https://www.census.gov/data-tools/demo/idb/#/country?YR_ANIM=2022. The choice of population denominators for incidence is based on the availability of population data at the time of publication preparation.
  4. Annual tables for 2016 and later years are available on CDC WONDER.
  5. Annual summary reports from 1993–2015 are available as published in the Morbidity and Mortality Weekly Report.
  6. NNDSS annual tables since 1952 are available at CDC Stacks. To find them, search for "NNDSS" under Collections. Once in NNDSS Collections, navigate to the "Genre" box on the left-hand side and select "Annual Reports".
  7. For most conditions, national incidence rates are calculated as the number of reported cases for each infectious disease or condition divided by the U.S. resident population for the specified demographic population or the total U.S. resident population, multiplied by 100,000. When a national notifiable infectious condition is associated with a specific age restriction, the same restriction was applied to the population in the denominator of the incidence rate calculation. In addition, population data from reporting jurisdictions in which the disease or condition was not reportable or not available were excluded from the denominator of the incidence rate calculations.

    Age restrictions in the numerator and denominator are applied for the following childhood conditions:

    • Zika virus disease, congenital (age restriction in numerator and denominator is <1 year)
    • Zika virus infection, congenital (age restriction in numerator and denominator is <1 year)
    • Haemophilus influenzae, invasive disease <5 years (age restriction in numerator and denominator is <5 years)
    • Invasive pneumococcal disease <5 years (age restriction in numerator and denominator is <5 years)
    • Influenza associated pediatric mortality (age restriction in numerator and denominator is <18 years)
    • Infant botulism (age restriction in numerator and denominator is <1 year)
    • Congenital rubella syndrome (age restriction in numerator and denominator is <1 year)
    • Perinatal hepatitis B infection (age restriction is ≤24 months)
    • Perinatal hepatitis C infection (age restriction is ≤36 months).

    Data for congenital syphilis are aggregated by the infant's year of birth. The rate for congenital syphilis is based upon the number of reported cases per 100,000 live births, using natality data for 2022 (National Center for Health Statistics Natality 2022, as compiled from data provided by the Vital Statistics Cooperative Program). Congenital syphilis cases are usually assigned to the mother's state of residence at the time of delivery. The mother's race and ethnicity are used for race- and ethnicity-specific rates of congenital syphilis cases.

  8. Surveillance data reported by other CDC programs might vary from data reported in these tables because of differences in 1) the date used to aggregate the data, 2) the timing of reports, 3) the source of the data, 4) surveillance case definitions, and 5) policies regarding case jurisdiction (i.e., which jurisdiction should submit the case notification to CDC).
  9. Disease data presented in the 2022 tables reflect impacts of the COVID-19 pandemic, such as changes in exposure-related behavior, healthcare-seeking behavior, disease reporting, and public health investigations.
Suggested Citation: Acknowledgment:
  • CDC acknowledges the local, state, and territorial health departments that collected the data from a range of case ascertainment sources (e.g., healthcare providers, hospitals, laboratories) and reported these data to CDC's National Notifiable Diseases Surveillance System.