Mpox Data

Mpox Cases per County

Updated February 20, 2024 at 3:37 p.m. Pacific Time

Actualizado 2/20/2024 3:37 p.m. PT

CountyCondado Number of casesCantidad de casos
Benton <10
Chelan <10
Clallam <10
Clark 14
Cowlitz <10
Grant <10
Grays Harbor <10
Island <10
King 566
Kitsap <10
Kittitas <10
Klickitat <10
Lewis <10
Mason <10
Pierce 63
Skagit <10
Snohomish 45
Spokane 10
Thurston <10
Walla Walla <10
Whatcom <10
Yakima <10
Total casesCasos totales 737

Mpox Dashboard Technical Notes

The Washington State Department of Health (DOH) is no longer listing positive cases in non-Washington residents, those cases are counted in a person’s state or country of residence.

DOH makes every effort to publish updates on Tuesdays (except for state holidays). 

Due to processing, there may be some lag time between when a local health jurisdiction or health care provider confirms a positive test or reports a vaccine dose and when that information is added to the data above.

Mpox Vaccine Summary

As of January 31, 2024, 10:55 PM (PST), there have been 35761 administrations of mpox vaccine entered into the Washington State Immunization Information System (WAIIS). Of these, 99% have been the JYNNEOS vaccine. A total of 21609 Washington state residents have received an mpox vaccine, of which 13479 are fully vaccinated (i.e., have received two JYNNEOS).

Mpox Vaccines

There are two vaccines available for mpox: JYNNEOS and ACAM2000. The current mpox outbreak response has focused on distributing JYNNEOS. There have been very few administrations of ACAM2000, although this analysis monitors for them. JYNNEOS is administered in two doses, the second of which is recommended 24-35 days after the first dose. Below is a table of patient counts organized by JYNNEOS dose number.

Mpox Vaccine Doses Given

JYNNEOS Doses  Number of Doses Given
Dose 1 8,131
Dose 2 13,428
Dose 3 43
Dose 4 7



Mpox Vaccine Doses Given by County 

County Number of Doses Given
Benton 60
Chelan 54
Clallam 72
Clark 850
Cowlitz 10
Douglas 36
Franklin 115
Island 27
Jefferson 55
King 28,871
Kitsap 278
Klickitat 24
Pierce 2,260
San Juan 34
Skagit 114
Snohomish 393
Spokane 902
Thurston 755
Walla Walla 127
Whatcom 356
Whitman 30
Yakima 179
OR State 75

Excludes administrations from suppressed (n<10) and unknown counties.