Data Downloads
Data Notes
Death Reporting, June 28, 2020:
Death reporting June 27th and 28th may be artificially low due to a data issue that will be corrected June 29th.
Testing, June 17, 2020:
- On June 16th, DOH discovered that negative serology test results for COVID-19 antibodies were incorrectly included in reports of negative PCR test results for COVID-19. This resulted in an over reporting of the number of individuals who have only tested negative, by 13% since April 21st. Data have been updated to remove the antibody testing results.
- Two important data issues continue to effect results presented on the testing tab. The first is that about ~8,000 negative lab results have not yet been entered into our data system. The second is that about 21% of negative test results do not have an assigned county. These two issues impact some counties disproportionately. Department of Health continues to work on a sustainable solution.
- Regarding reporting for testing in general, the data presented is by number of individuals not by number of tests. An individual is only counted one time in all graphics and tables. They are classified by their first positive test result, or their first negative if they never had a positive test.
Death Reporting June 17, 2020:
Deaths are currently reported for anyone who has tested positive for COVID-19. The Department is working on changes to provide more context to death reporting and report death counts that reflect deaths where COVID-19 caused or contributed to the death. Beginning June 17th, we will be removing deaths from our daily counts where COVID-19 did not cause or contribute to the death. We will continue to update death counts as additional information on cause of death is received. On June 17th, we removed 7 deaths (3 homicides, 2 suicides, and 2 overdoses).
Note on the deaths:
Some deaths may be reported by health care providers, medical examiners/coroners, local health departments, or others before they are included in the statewide count. It takes longer for the state to announce deaths because they are often reported first to the local health department and then to us.
Case Report Date, June 16, 2020:
As of June 16, 2020, DOH switched from using the date a case was reported to the Department of Health to the date of an individual’s first positive lab result. This is a more accurate designation of case confirmation that will shift some case counts by date, most noticeably for cumulative case counts and graphics. This will affect less than 10% of the reported cases.
Note on the number of infections:
Public health experts agree that the true number of people who have been infected with COVID-19 in Washington greatly exceeds the number of COVID-19 infections that have been laboratory-confirmed. It is very difficult to know exactly how many people in Washington have been infected to date since most people with COVID-19 experience mild illness and the ability to get tested is still not widely available.