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Wastewater & a possible peak passed
#1

Some indications may show that some areas may have hit the peak in Omicron infections and are on the way down, but still much higher than the previous peaks:


Boston wastewater is showing a clear decline in COVID detection (not down to pre-Omicron levels).
Likewise, Santa Clara County wastewater is showing a flattening or a decline.  The Palo Alto treatment site shows a clear decline.

HOWEVER, it looks like virtually all of the country is still on the way up (including Sacramento & Monterey) according to wastewater measurements.

Climbing:  Houston ; Wisconsin ; Ottawa ; Colorado ; Ohio ;
Mixed bag:  a variety of sites around the SF part of Northern California (as measured by a Stanford project, SCAN) including one that is at Stanford (Codiga), which is in a clear decline (peaked Jan 2)

This is NOT the time to relax.  Prudence would be to wait a few weeks before going out into crowds to make sure things are really getting down to the levels that we used to know as crazy high levels of infection.

As I looked around at wastewater numbers, I saw a few sites that had no real increase in virus signature in their wastewater even up to early January.  So I expect there will be pockets that will burn later than the areas already starting to come down.

Other interesting COVID wastewater sites
UCSD COVID dashboard shows exposure locations and shows a campus map with wastewater indications for each building.
Missouri shows variants detected each week in wastewater around the state.

Worldwide links to wastewater dashboards.  (there are far fewer than I expected.  Lots of places doing some measurements, but not posting them consistently.  The CDC is trying to collect the data and post it, but it is not ready yet.)
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#2
This may have been obvious to you, but I just noticed that the narrow "width" of the peak is actually narrower for a county or wastewater system than for a state or country. This makes sense because the start times of the wave differ.
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