September 15, 2020 10:36 AM

Sonoma County aligns COVID-19 data with State

Based on information released from the State, the Sonoma County Department of Health Services today will be changing the methodology it uses to tabulate the number of COVID-19 tests conducted as well as the County’s testing positivity rate. Once implemented, these changes will result in the posting of new data on the County’s COVID-19 dashboard. The new methodology, which will be applied retroactively, will show an overall increase in testing volume as well an associated decrease in Sonoma County’s testing positivity rate.

The consistency of these two metrics is vital because, under Gov. Gavin Newsom’s new “Blueprint for a Safer Economy” for reducing COVID-19, they determine how soon counties will be able to move from one tier to the next. For example, Sonoma County, which is currently in the most-restrictive purple tier, would have to see its average daily virus case rate per 100,000 residents drop below 7. The County also would need to see its overall percentage of positive tests drop below 8 percent. Under the county’s new data, which more closely aligns with numbers from the California Department of Public Health, the County’s seven-day average case rate per 100,000 residents stands at 11.2 while its seven-day average positivity rate is 5.3 percent. Under the County’s previous methodology, the numbers, as of last week, stood at 13 cases and 11.5 percent respectively.

Read the Press Release»