Skip to main content
King County logo
  • 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 647 641 552 656 558 648 737 864 1072 929
Hepatitis C, Acute 6 6 7 4 17 21 20 16 14 25
Hepatitis C, Chronic 1304 1462 1352 1192 1497 1740 1884 2303 2306 1704
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