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COVID-19 in King County WA – June 4 Report

by | Jun 4, 2020

Update from Public Health – Seattle & King County

Public Health has updated the data dashboard. As of 11:59 p.m. yesterday, June 3, there were 8,333 confirmed cases of COVID-19 in King County, 56 more than the previous day. There have been 564 confirmed deaths in King County due to COVID-19, 6.8% of all confirmed cases.

The numbers that Public Health reports each day include delayed results from previous days.

Observations

The first graph above shows new cases (blue bars) and the 7-day average (red line). Of the 56 new cases reported today, 39 were confirmed yesterday and the remaining 17 were confirmed in previous days. The 7-day average of new cases per day peaked at 194 on April 1. The average for the last 7 days is now 41 new cases per day, up from 33 five days ago. The 7-day average has increased 1% in the last week and declined 16% in the last two weeks. If the rate of decline during the last two weeks continues, the 7-day average will be 10 on around September 23.

The second graph below shows the total case count. With 8,333 total cases as of 11:59 pm yesterday, the compound daily growth rate during the last 7 days has been 0.51%, 1 basis point lower than the 0.52% rate during the prior 7 days. With 8,333 cases, the daily growth rate must be less than 0.12% in order for the number of new cases per day to be less than 10.

The third graph below shows the trajectory of cases in King County with the total number of cases on the horizontal axis and the new cases on the vertical axis. Each axis is on a logarithmic scale. Each blue dot represents a daily report. The dot farthest to the left is the February 28 report. Time passes from left to right as the total case count grows. The dot farthest to the right is today’s daily report. We can see a clear change in the trajectory since March 28, shortly after Governor Inslee’s “Stay Home, Stay Healthy” order on March 23.

Thank you for being curious.
-Will

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