Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

National Notifiable Infectious Diseases and Conditions: United States

TABLE 3. Reported cases of notifiable diseases, by month*, excluding U.S. territories - - United States, 2017
Disease Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Unknown Total
Anthrax
Arboviral diseases
Chikungunya virus disease 6 2 5 7 11 17 19 14 29 17 9 20 156
Eastern equine encephalitis virus disease
Neuroinvasive 1 3 1 5
Non-neuroinvasive
Jamestown Canyon virus disease
Neuroinvasive 1 3 2 12 14 10 12 2 2 58
Non-neuroinvasive 1 4 3 5 4 17
La Crosse virus disease
Neuroinvasive 1 2 16 28 9 5 2 63
Non-neuroinvasive
Powassan virus disease
Neuroinvasive 1 9 8 6 1 1 2 2 3 33
Non-neuroinvasive 1 1
St. Louis encephalitis virus disease
Neuroinvasive 2 4 6
Non-neuroinvasive 1 1 2 1 5
West Nile virus disease
Neuroinvasive 3 5 4 19 192 445 575 127 40 15 1,425
Non-neuroinvasive 3 2 3 22 132 231 213 51 10 5 672
Western equine encephalitis virus disease
Neuroinvasive
Non-neuroinvasive
Babesiosis
Total 17 11 14 20 68 262 846 514 247 115 76 178 2,368
Confirmed 10 6 9 12 46 225 755 440 206 87 57 141 1,994
Probable 7 5 5 8 22 37 91 74 41 28 19 37 374
Botulism
Total 10 12 10 20 17 13 11 14 14 10 19 27 177
Foodborne 1 10 3 1 3 1 19
Infant 9 10 9 9 10 12 8 8 12 8 17 25 137
Other (wound & unspecified) 1 1 1 1 4 3 3 1 2 2 2 21
Brucellosis 10 11 19 11 8 26 10 10 11 5 19 140
Campylobacteriosis 3,485 3,486 3,646 5,358 5,167 6,605 8,989 6,488 6,822 4,832 4,440 8,219 67,537
Chancroid 1 3 1 1 1 7
Chlamydia trachomatis infection 121,687 131,274 131,494 162,492 132,119 124,608 161,548 140,581 167,506 141,332 125,923 168,005 1,708,569
Cholera 1 1 1 1 3 3 10
Coccidioidomycosis † 866 742 661 866 766 789 1,209 1,131 1,537 1,568 1,751 2,478 14,364
Cryptosporidiosis
Total 449 463 585 828 594 710 1,229 1,666 1,852 1,186 801 1,051 11,414
Confirmed 343 331 397 546 374 500 859 1,236 1,398 845 544 670 8,043
Probable 106 132 188 282 220 210 370 430 454 341 257 381 3,371
Cyclosporiasis 5 2 5 7 41 210 439 361 71 21 7 25 1,194
Dengue virus infections §
Dengue 32 17 13 9 14 22 58 59 70 57 48 38 437
Dengue-like illness 1 1 1 2 1 1 1 8
Severe dengue 1 2 2 2 1 1 9
Diphtheria
Ehrlichiosis and Anaplasmosis
Anaplasma phagocytophilum infection 18 28 54 206 667 1,261 1,590 510 343 340 485 260 5,762
Ehrlichia chaffeensis infection 6 12 9 63 175 268 387 232 196 91 48 155 1,642
Ehrlichia ewingii infection 1 1 4 8 19 9 1 1 1 45
Undetermined ehrlichiosis/anaplasmosis 2 2 4 12 22 40 77 34 34 18 12 12 269
Giardiasis 914 913 980 1,244 1,021 1,015 1,583 1,527 1,841 1,249 987 1,919 15,193
Gonorrhea 38,343 38,974 39,784 49,829 41,064 41,445 54,817 46,444 56,307 47,209 42,980 58,412 555,608
Haemophilus influenzae, invasive disease
All ages, all serotypes 466 442 428 543 415 435 494 290 411 387 410 827 5,548
Age <5 years
Serotype b 1 1 5 2 4 4 1 3 2 3 7 33
Non-b serotype 14 23 20 14 13 16 15 11 14 10 14 25 189
Nontypeable 17 18 18 22 15 16 17 6 12 9 14 36 200
Unknown serotype 14 19 15 26 15 13 22 14 10 13 19 23 203
Hansen's disease 8 3 9 12 8 10 10 4 10 9 4 7 94
Hantavirus infection, non-hantavirus pulmonary syndrome 1 1 2
Hantavirus pulmonary syndrome 2 1 3 5 4 3 1 4 3 7 33
Hemolytic uremic syndrome post-diarrheal 12 16 19 30 23 24 56 28 47 26 26 31 338
Hepatitis ¶
A, acute 104 145 166 230 238 246 361 391 449 323 289 423 3,365
B, acute 229 228 324 342 266 250 318 239 336 271 220 386 3,409
B, perinatal infection 2 2 3 4 1 2 2 2 3 4 3 3 31
C, acute 284 329 341 389 347 326 393 327 390 273 312 514 4,225
Confirmed 227 252 258 288 275 253 304 240 298 211 237 370 3,213
Probable 57 77 83 101 72 73 89 87 92 62 75 144 1,012
Human immunodeficiency virus diagnoses 3,288 3,059 3,336 3,063 3,294 3,360 3,231 3,327 2,742 2,815 1,981 437 5 33,938
Influenza-associated pediatric mortality 15 24 21 33 9 2 4 3 3 4 8 126
Invasive pneumococcal disease **
All ages 1,991 2,122 2,045 2,278 1,508 1,269 915 634 1,147 1,093 1,475 3,303 19,780
Confirmed 1,979 2,110 2,030 2,255 1,497 1,256 913 626 1,133 1,082 1,465 3,274 19,620
Probable 12 12 15 23 11 13 2 8 14 11 10 29 160
Age <5 years 80 110 129 128 105 83 60 53 95 89 115 187 1,234
Confirmed 80 108 127 128 104 82 60 52 92 89 114 184 1,220
Probable 2 2 1 1 1 3 1 3 14
Legionellosis 371 315 251 410 538 645 1,274 857 980 705 573 539 7,458
Leptospirosis 4 7 3 8 6 2 9 6 8 2 7 10 72
Listeriosis 48 48 51 58 52 68 105 102 113 82 60 100 887
Lyme disease
Total 1,134 1,032 1,170 1,863 2,582 5,647 11,472 6,481 4,467 2,579 2,063 2,253 42,743
Confirmed 726 644 711 1,141 1,635 3,964 8,489 4,671 3,028 1,724 1,337 1,443 29,513
Probable 408 388 459 722 947 1,683 2,983 1,810 1,439 855 726 810 13,230
Malaria 120 105 65 138 162 189 288 293 260 163 102 171 2,056
Measles
Total 15 3 7 33 41 8 5 1 2 5 120
Indigenous 10 2 2 33 39 7 3 1 2 99
Imported 5 1 5 2 1 2 1 1 3 21
Meningococcal disease
All serogroups 34 29 34 35 32 18 22 17 26 28 32 46 353
Serogroups ACWY 11 5 10 9 13 2 5 4 7 10 14 17 107
Serogroup B 8 8 11 7 6 2 8 1 9 6 13 11 90
Other serogroups 3 2 1 4 1 4 1 2 1 1 5 25
Unknown serogroup 12 14 12 15 12 10 9 11 8 11 4 13 131
Mumps 619 669 652 631 469 324 293 232 328 306 341 1,245 6,109
Novel Influenza A virus infections 1 12 8 34 9 1 1 66
Pertussis 1,137 1,113 1,190 1,769 1,670 1,500 1,961 1,391 1,496 1,132 1,637 2,979 18,975
Plague 1 1 2 1 5
Poliomyelitis, paralytic
Poliovirus infection, nonparalytic
Psittacosis 1 1 1 1 1 5
Q fever
Total 9 8 12 28 23 17 25 17 10 11 16 17 193
Acute 7 6 6 24 18 14 23 12 7 10 14 12 153
Chronic 2 2 6 4 5 3 2 5 3 1 2 5 40
Rabies
Animal 208 201 386 365 447 397 440 593 535 408 258 180 5 4,423
Human 1 1 2
Rubella 1 2 1 1 2 7
Rubella, congenital syndrome 2 1 2 5
Salmonellosis 2,148 2,185 2,406 4,066 3,810 4,763 7,488 6,464 6,926 5,143 3,813 5,073 54,285
Severe acute respiratory syndrome-associated coronavirus disease
Shiga toxin-producing Escherichia coli †† 313 342 358 739 617 775 1,128 1,014 1,028 755 606 997 8,672
Shigellosis 989 1,054 946 1,210 1,132 1,201 1,511 1,348 1,534 1,203 1,108 1,676 14,912
Smallpox
Spotted fever rickettsiosis
Total 43 64 103 353 577 1,062 1,364 929 745 385 189 434 6,248
Confirmed 4 2 5 21 22 24 31 29 14 6 3 15 176
Probable 39 62 98 332 555 1,038 1,333 900 731 379 186 419 6,072
Streptococcal toxic shock syndrome 32 33 35 57 51 31 24 12 16 13 23 45 372
Syphilis
Total, all stages 6,751 7,730 8,018 9,893 7,992 7,757 9,388 8,190 9,663 8,265 7,512 10,408 101,567
Congenital 74 63 67 67 68 69 91 84 72 98 77 88 918
Primary and secondary 2,096 2,310 2,352 2,934 2,346 2,295 2,875 2,489 3,016 2,507 2,315 3,109 30,644
Tetanus 3 5 3 3 3 1 5 4 4 2 33
Toxic shock syndrome (other than Streptococcal) 3 1 8 1 3 3 2 4 3 2 30
Trichinellosis 3 1 3 6 1 1 15
Tuberculosis 504 624 801 686 803 799 748 846 737 779 687 1,091 9,105
Tularemia 1 5 3 14 25 31 38 25 33 14 21 29 239
Typhoid fever 41 20 23 37 22 19 46 42 53 52 19 45 419
Vancomycin-intermediate Staphylococcus aureus 5 13 7 9 2 9 13 7 16 6 12 10 109
Vancomycin-resistant Staphylococcus aureus 1 1 1 3
Varicella morbidity 676 740 781 960 748 513 566 495 831 772 778 915 8,775
Varicella mortality 1 1 2
Vibriosis
Total 60 61 81 145 126 158 333 277 273 194 129 248 2,085
Confirmed 45 39 54 95 85 111 271 209 203 135 75 175 1,497
Probable 15 22 27 50 41 47 62 68 70 59 54 73 588
Viral hemorrhagic fevers
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 §§ 7 4 2 3 1 2 2 1 22
Zika virus disease, non-congenital 80 48 34 39 25 28 44 61 53 37 25 23 497
Zika virus infection, congenital §§ 1 1 4 2 3 4 2 17
Zika virus infection, non-congenital 61 59 44 79 71 63 70 34 43 36 35 46 641
  • —: No reported cases — The reporting jurisdiction did not submit any cases to CDC.
  • * Month is defined using MMWR week (http://wwwn.cdc.gov/nndss/document/MMWR_Week_overview.pdf). MMWR week calendars can be found at http://wwwn.cdc.gov/nndss/script/downloads.aspx.
  • † Reportable in <25 states.
  • § Total number of reported laboratory-positive dengue cases, including all confirmed cases [by anti-dengue virus (DENV) molecular diagnostic methods or seroconversion of anti-DENV IgM] and all probable cases (by a single, positive anti-DENV IgM).
  • ¶ Chronic hepatitis B and C data are not included in NNDSS tables but reported case counts are included in the annual Summary of Viral Hepatitis, published online by CDC's Division of Viral Hepatitis, available at https://www.cdc.gov/hepatitis/statistics/2016surveillance/index.htm.
  • ** Includes 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.
  • †† Includes Escherichia coli O157:H7 and Shiga toxin-positive Escherichia coli (including O157, non-O157, and not serogrouped).
  • §§ Data reported to ArboNET using the national surveillance case definition for congenital Zika virus disease or infection (CSTE Position Statement 16-ID-01). Additional data reported to the US Zika Pregnancy Registry for outcomes of pregnancies with laboratory evidence of possible Zika virus infection are available at https://www.cdc.gov/pregnancy/zika/data/pregnancy-outcomes.html. Cases reported to the US Zika Pregnancy Registry might not meet the national surveillance case definition for congenital Zika virus disease or infection.

TOP