Benicia still registering above CDC’s measure for HIGH TRANSMISSION of COVID-19

Data shows a dip in 7-day COVID case numbers in Benicia, but transmission level still HIGH

By Roger Straw, September 11, 2021

Over the last 7 days, the number of newly reported COVID infections in Benicia fell from an astonishingly high 105 to 43.  This is good news, but Benicia remains substantially over the CDC’s definition of a HIGH level of transmission.

Based on Benicia’s population of roughly 28,000, when Solano County reports 14 or more new Benicia cases over the last 7 days (the red line in the graph above), the CDC classifies us as having a level of “SUBSTANTIAL transmission.”  If we see 28 new cases over the last 7 days (the purple line) we are in an area of “HIGH transmission.” That’s where we were at the County’s most recent report on Friday, with 43 total new cases over the last 7 days.

Benicia entered into substantial transmission on July 12, and high transmission on July 23, with numbers increasing until last Wednesday, September 8.

The daily data is shown in the chart above and also in the table below.

Note that Solano County’s reporting is often tardy, based on tardy reporting from hospitals and the State.  So the massive rise in outbreaks we saw on September 1 could be off some.  But the CDC’s 7-day formula is helpful in mitigating the delays in reporting, similar to taking an average.  Our numbers continue to be at least in the Substantial range, and the numbers are clear evidence of Benicia’s continuing delta surge.

For more, see my ARCHIVE of daily Solano COVID updates (an excel spreadsheet).

>>The data on this page is from the Solano County COVID-19 Dashboard.  The Dashboard is full of much more information and updated Monday, Wednesday and Friday around 4 or 5pm.  On the County’s dashboard, you can hover a mouse or click on an item for more information.  Note the tabs at top for “Summary, Demographics” and “Vaccines.”  Click here to go to the most recent Solano County Dashboard.