
Communicable disease surveillance summaries
Number of cases by year in King County
- Select a disease name to learn more about that condition.
- For annual data about HIV/STD and tuberculosis cases, visit their program websites.
Disease | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
Animal bites and potential rabies exposures | 129 | 94 | 71 | 69 | 115 | 93 | 98 | 123 | 120 | 158 |
Arboviral disease | 9 | 9 | 7 | 7 | 9 | 14 | 18 | 58 | 25 | 10 |
Botulism, Foodborne | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
Botulism, Infant | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 |
Botulism, Wound | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Brucellosis | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 0 | 0 |
Campylobacteriosis | 295 | 319 | 400 | 389 | 404 | 413 | 598 | 598 | 692 | 690 |
Cryptosporidiosis | 35 | 16 | 16 | 24 | 18 | 18 | 26 | 43 | 65 | 90 |
Cyclosporiasis | 0 | 1 | 3 | 0 | 0 | 1 | 3 | 2 | 9 | 12 |
E. coli | 85 | 57 | 54 | 72 | 71 | 88 | 105 | 87 | 78 | 194 |
Giardiasis | 110 | 135 | 163 | 174 | 202 | 182 | 219 | 257 | 269 | 176 |
Haemophilus influenzae invasive disease (under age 5 years) | 1 | 8 | 1 | 0 | 4 | 2 | 2 | 2 | 2 | 3 |
Hantavirus Pulmonary Syndrome | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 |
Hepatitis A | 15 | 7 | 16 | 10 | 14 | 5 | 9 | 14 | 10 | 14 |
Hepatitis B, Acute | 13 | 16 | 15 | 11 | 13 | 9 | 9 | 4 | 6 | 8 |
Hepatitis B, Chronic | 663 | 640 | 553 | 657 | 565 | 653 | 743 | 892 | 1104 | 950 |
Hepatitis C, Acute | 6 | 6 | 7 | 4 | 17 | 21 | 20 | 16 | 14 | 25 |
Hepatitis C, Chronic | 1343 | 1477 | 1386 | 1219 | 1584 | 1777 | 1942 | 2412 | 2445 | 1858 |
Hepatitis E | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 2 | 5 |
Legionellosis | 13 | 11 | 10 | 7 | 18 | 13 | 12 | 21 | 14 | 18 |
Leptospirosis | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 |
Listeriosis | 7 | 8 | 9 | 10 | 7 | 6 | 6 | 8 | 7 | 5 |
Lyme disease | 14 | 9 | 7 | 6 | 9 | 5 | 8 | 9 | 18 | 8 |
Malaria | 20 | 22 | 11 | 13 | 19 | 18 | 11 | 15 | 19 | 17 |
Measles | 1 | 1 | 0 | 0 | 4 | 13 | 0 | 0 | 2 | 1 |
Meningococcal disease | 5 | 8 | 9 | 4 | 3 | 1 | 3 | 3 | 2 | 5 |
Mumps | 4 | 2 | 1 | 1 | 0 | 4 | 2 | 108 | 217 | 24 |
Paralytic Shellfish Poisoning | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 |
Pertussis | 49 | 81 | 115 | 792 | 126 | 136 | 223 | 119 | 116 | 111 |
Q Fever | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Relapsing Fever | 2 | 3 | 2 | 1 | 0 | 1 | 2 | 2 | 0 | 1 |
Rubella | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Salmonellosis | 320 | 240 | 192 | 218 | 199 | 231 | 425 | 235 | 240 | 318 |
Shigellosis | 70 | 52 | 43 | 68 | 47 | 65 | 80 | 75 | 163 | 273 |
Tetanus | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 |
Trichinosis | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 |
Tularemia | 1 | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 |
Typhoid Fever | 4 | 15 | 10 | 6 | 8 | 8 | 9 | 9 | 9 | 8 |
Vibriosis | 24 | 20 | 22 | 29 | 46 | 34 | 32 | 29 | 46 | 102 |
Yersiniosis | 18 | 7 | 5 | 22 | 16 | 20 | 9 | 28 | 39 | 45 |