[M T]

This article may have already been posted, but if not it suggests reasonable success at test and tracing in the Bay Area.
https://www.sfchronicle.com/health/artic...372556.php

I posted that in its own thread on Contact Tracing, along with the Mercury News article that gives a less rosy picture.  The SFChronicle article's rosy picture is "Many local counties are approaching their goal of contacting 90% of the region’s positive cases, while others are still scrambling to ramp up their contact-tracing operations."

but then look at the article's data:

• Alameda County’s .. contact tracers were able to reach about 85% of cases as of Wednesday.
  
• Marin County, ... reached 70% of confirmed cases and only 46% of their contacts in the past two weeks.
  
• Contra Costa County contacted 74% of confirmed cases and 68% of their contacts in the first three weeks of June.
  

... that's it.

The article doesn't indicate how quickly they get to the contacts.

The SJMN article also has this data

• San Francisco’s dashboard reports the percentage of new cases and their contacts that health officials reach — both currently 83%, short of the city’s 90% goal. But it doesn’t indicate how quickly the connections are made.
  

---

I'm not sure if this is a new page, but it is new to me.  SCC has a Five Key Indicators page "for Assessing Progress on Containing COVID-19", that is being tracked for each of the Bay Area counties.  Indicator 4 is on tracking.

I was disappointed this was the only indicator that didn't have data behind it.  It indicated the infrastructure must be designed to accomplish

• We reach at least 90% of cases and identify their contacts;
  
• We ensure 90% of the cases that we reach can safely isolate;
  
• We reach at least 90% of all contacts identified; and
  
• We ensure at least 90% of identified contacts can safely quarantine.
  

---

And, to see that contact tracing works, see LA County.  They're contacting 98.1% of their cases each day, within a day (oh, sorry, within a day of assignment).  Of course, it was easier last week. 

• June 29 (latest numbers), they announced 2903 new cases. 
  
• A week before (June 22), it was a leisurely 2571 cases. 
  
• A week before (June 15) was in the doldrums, 1071 cases.  
  
• A week before (June 8), 823 cases.
  

But, as you can see, high case contact percentage means contact tracing is helping to bring down the case counts.

If you don't get my drift, I wonder if LA Co is BBQing on the beach the numbers they give the state.  Today, the state was finally told the percent positive in LACo is 8.2%, the first time they've reported above 8% or higher to the state. (Per the county's website, in 29 days, they've been below 8% one day.  They've been 9% or higher for 16 days.)

Whatever they've been smoking there on the beach, they seemed to have passed it to this tracking site as well.  Look at those COVID infection rate ( R ) numbers.  The entire month of June has been between 1.02 and 1.05, meaning "that COVID continues to spread, but in a slow and controlled fashion."

[M T]

This article may have already been posted, but if not it suggests reasonable success at test and tracing in the Bay Area.
https://www.sfchronicle.com/health/artic...372556.php

I posted that in its own thread on Contact Tracing, along with the Mercury News article that gives a less rosy picture.  The SFChronicle article's rosy picture is "Many local counties are approaching their goal of contacting 90% of the region’s positive cases, while others are still scrambling to ramp up their contact-tracing operations."

but then look at the article's data:

• Alameda County’s .. contact tracers were able to reach about 85% of cases as of Wednesday.
  
• Marin County, ... reached 70% of confirmed cases and only 46% of their contacts in the past two weeks.
  
• Contra Costa County contacted 74% of confirmed cases and 68% of their contacts in the first three weeks of June.
  

... that's it.

The article doesn't indicate how quickly they get to the contacts.

The SJMN article also has this data

• San Francisco’s dashboard reports the percentage of new cases and their contacts that health officials reach — both currently 83%, short of the city’s 90% goal. But it doesn’t indicate how quickly the connections are made.
  

---

I'm not sure if this is a new page, but it is new to me.  SCC has a Five Key Indicators page "for Assessing Progress on Containing COVID-19", that is being tracked for each of the Bay Area counties.  Indicator 4 is on tracking.

I was disappointed this was the only indicator that didn't have data behind it.  It indicated the infrastructure must be designed to accomplish

• We reach at least 90% of cases and identify their contacts;
  
• We ensure 90% of the cases that we reach can safely isolate;
  
• We reach at least 90% of all contacts identified; and
  
• We ensure at least 90% of identified contacts can safely quarantine.
  

---

And, to see that contact tracing works, see LA County.  They're contacting 98.1% of their cases each day, within a day (oh, sorry, within a day of assignment).  Of course, it was easier last week. 

• June 29 (latest numbers), they announced 2903 new cases. 
  
• A week before (June 22), it was a leisurely 2571 cases. 
  
• A week before (June 15) was in the doldrums, 1071 cases.  
  
• A week before (June 8), 823 cases.
  

But, as you can see, high case contact percentage means contact tracing is helping to bring down the case counts.

If you don't get my drift, I wonder if LA Co is BBQing on the beach the numbers they give the state.  Today, the state was finally told the percent positive in LACo is 8.2%, the first time they've reported above 8% or higher to the state. (Per the county's website, in 29 days, they've been below 8% one day.  They've been 9% or higher for 16 days.)

Whatever they've been smoking there on the beach, they seemed to have passed it to this tracking site as well.  Look at those COVID infection rate ( R ) numbers.  The entire month of June has been between 1.02 and 1.05, meaning "that COVID continues to spread, but in a slow and controlled fashion."