COVID-19 daily report for Edmonds and Snohomish County: April 4, 2020

The Snohomish Health District started supplying case counts on weekends again, so we are able to provide you with the latest numbers as of April 4.

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2 Replies to “COVID-19 daily report for Edmonds and Snohomish County: April 4, 2020”

  1. Seeing the orange line go down in the last graph (which the legends says represents New Cases) is apparently too good to be true. The raw data in the table below the graph appears to indicate that the legend has the labels for the orange and green lines switched.

    Now realizing they are saying that the number of recovered cases is down while the number of new cases keeps climbing makes me wonder how they determine the number of “Recovered Cases”, since many who test positive simply recover at home.

    It does appear like top line is starting to flatten, which seems to align with the UW model that predicts the state’s peak to occur next week, as found at: (select Washington from drop-down menu)


  2. The number for new cases per day (orange line) is the difference between the previous and current day countywide totals. In the chart above that would be 1579 (total cases for 4/4) minus 1526 (total cases for 4/3) = 53. This does not reflect the total number of cases and is not affected by the numbers of recovered cases. It is the incremental number of new cases added since the last daily report from the Snohomish Health District.

    The number of active cases (yellow line) is the difference between the number of recovered cases and the total number of cases for a given day. For 4/4 that would be 1579 minus 615 = 964. The Health District does not go into a detailed explanation of how they determine who is recovered – we’re merely reporting the number that they post in their daily updates.


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