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COVID-19 Status Update for 12/02/2021

Marin County COVID-19 Status Update for December 2, 2021 includes Post-Holiday Testing Reminder; Public Health Shares Vaccine Lessons; and updated local COVID-19 data.… Read More

COVID-19 Status Update for 10/06/2020

The status update for October 6, 2020 includes new Blueprint data; a video update from Dr. Willis; updated COVID-19 Data; and an invitation to “Shake Out” for safety.  

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The Marin County COVID-19 Status Update is now publishing five days a week (Monday through Friday) and as needed, in order to share important news and resources in our battle against COVID-19 and to keep our economy running. We remain here for you.


Weekly Blueprint Update: Marin Remains in Tier 2

Today, California Department of Public Health (CDPH) provided its weekly update on the Blueprint for a Safer Economy, a statewide plan for reducing COVID-19 and keeping Californians healthy and safe.  As part of this process, CDPH assesses indicators that capture disease burden, testing, and health equity.  This assessment happens weekly on Mondays and CDPH releases updated tier assignments on Tuesdays at around 12-noon.

CDPH confirmed Marin County’s placement in Tier 2 (red status) for a fourth straight week. CDPH’s October 6 assessment for Marin County includes:

  • Testing Positivity: 1.8%  (decrease of 1.1% since last assessment)
  • Adjusted Case Rate: 4.0  (decrease of 1.7 since last assessment)
  • NEW! Health Equity Metric / Quartile Test Positivity Rate: 3.1%

Effective today, the State is considering testing positivity rates in the most disadvantaged neighborhoods for each county. Defined as the lowest quartile of the U.S. Census Healthy Places Index for California (HPI), this new initiative is designed to help guide counties in their efforts to reduce COVID-19 cases in all communities and requires more intensive efforts to prevent and mitigate the spread of COVID-19 among Californians who have been disproportionately impacted by this pandemic.

Marin County has focused on health equity from the onset of our response, including providing services like culturally and linguistically competent case investigation and contact tracing, resources and housing options to support residents so they can safely isolate, and increasing access to testing in communities that are seeing high testing positivity and case rates.

The following table outlines the requirements for case rates, test positivity rates, and quartile test positivity rates for each tier status. Currently, two of Marin’s three measurements qualifies for Tier 3 (orange status):

Marin County Current Tier Status



Tier 1

Tier 2

Tier 3

Tier 4

Marin County

Adjusted Case Rate per 100,000

> 7

4 to 7

1 to 3.9

< 1


Overall Test Positivity Rate

> 8%

5% to 8%

2% to 4.9%

< 2%


Equity Metric: Quartile Test Positivity Rate

> 8.0%

≤ 8.0%

≤ 5.2%

≤ 2.1%


In general, for a County to advance to a less restrictive tier, it must (1) have been in the current tier for a minimum of three weeks; and (2) meet criteria for the next less restrictive tier for all three measures for the prior two consecutive weeks in order to progress to the next tier.

For Marin to officially achieve Tier 3 (orange status), two things need to happen: (1) the adjusted case rate must equal or fall below 3.9; and (2) Marin’s data must remain within the Tier 3 range for two weeks. If Marin’s data continues to improve, we could achieve Tier 3 status as early as October 27.  However, that means we must continue to work as a community to slow the spread of COVID-19.



VIDEO: COVID-19 Update to Board of Supervisors

This morning, Dr. Matt Willis gave as update to the Marin County Board of Supervisors providing an overview of COVID-19 data trends, greater detail about the California Department of Public Health's new Health Equity Metric, the reopening of schools, and preparations for the flu season coinciding with the COVID-19 pandemic. (Note: This presentation was recorded prior to CDPH’s announcement of current Blueprint data)

Youtube Video
Remote video URL


COVID-19 Data Update:

Below is a summary of today’s data now available on Marin Data & Surveillance webpage. View the page for a broader range of data, plus interactive graphs for confirmed COVID-19 cases, hospitalizations and deaths. Data analysis is available by age range, gender, race and city/town/geographic region. Questions about the data? See our Data FAQ or contact us.

COVID-19 activity in Marin:


Today’s Report

Change from Last Status Update*

Total Confirmed Cases


+ 25

Total Recovered (14 days post-diagnosis)


+ 12

Total Deaths


+ 4

Current Hospitalizations



Total / Cumulative Hospitalizations


+ 1

Tests Completed in Marin


+ 374

* The Marin County COVID-19 Status Update is published Monday – Friday. Monday editions of the status update include data from Monday plus Saturday and Sunday of the previous weekend. Therefore, data shown under the “change from last update” heading will always be larger on Mondays and differ from what is published on the Coronavirus in Marin homepage, which is updated 7 days per week. 

Residential Care & Skilled Nursing Facility COVID-19 activity:


Today’s Report

Change from Last Status Update

Positive Patients at Facilities cumulative



Positive Patients at Facilities current


- 2

Positive Staff at Facilities current


- 1

Facility Patient Deaths



Facility Patient Deaths as percentage of all COVID+ deaths

81 %

- 4%

State COVID-19 activity:


Today’s Report

Change from yesterday

California Confirmed Cases



California Deaths





In Other News… (Non-COVID Updates)

While the following is not related to COVID, it is news from Marin County's Emergency Operations Center that we thought you should know about.

Participate in the Great Shake Out: COVID-19 Style.

Great ShakeOut Earthquake Drills, a worldwide earthquake safety movement, are involving 17.1 million people throughout 2020 (and counting). Most participate in ShakeOut by registering to practice “Drop, Cover, and Hold On,” and many do much more. Due to the COVID-19 pandemic, participants are adapting their ShakeOut activities through video-conferencing, choosing staggered or alternative dates, and following local health and safety guidelines (see

There is still time to join ShakeOut this year: register to participate on any day that works for you at Most take action on International ShakeOut Day each third Thursday of October, this year being October 15.  [Continue reading news release]


Spare the Air Alert extended through Thursday.

The Bay Area Air Quality Management District is extending the Spare the Air Alert due to wildfire smoke from the Glass Fire in Napa and Sonoma counties through Thursday, October 8, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.

Wildfire smoke from the Glass Fire in the North Bay, in addition to smoke from other northern California fires, will continue to impact the region. While onshore winds will continue to blow smoke out of much the Bay Area, localized impacts near the Glass Fire and intermittent impacts in the broader Bay Area will continue. Expect Marin County’s AQI levels to reach Orange or “Unhealthy for Sensitive Groups” during this time.

Smoke from wildfires can affect health. The most common symptoms are eye and throat irritation, coughing, and difficulty breathing. Those with health problems, especially heart or respiratory conditions, should take extra caution.

Follow these precautions to protect your health:

  • Minimize outdoor activities.  Postpone/Reschedule intense outdoor cardio activities.
  • Stay indoors with windows and doors closed as much as possible.
  • Do not run fans that bring smoky outdoor air inside.
  • Run your air-conditioner only if it does not bring smoke in from the outdoors.
  • Avoid activities that create more indoor and outdoor air pollution, such as frying foods, sweeping, vacuuming, and using gas-powered appliances.
  • Consider leaving the area until smoke conditions improve if you experience symptoms related to smoke exposure.
  • Check on family, friends, and neighbors who may be sensitive to poor air quality and who spend much of their time alone.

Related Resources:


Stay Informed

Follow the County of Marin on Facebook, Twitter, Nextdoor or subscribe to our status updates. Visit for resources to stay connected on the issue.

Helpful Links and Online Resources:


Contact Us.  We Are Here for You.

Have questions?  We are here to help.  Our call center is available Monday through Friday, from 9:30am to 12-noon and 1:00pm to 5:00pm. Please feel free to connect with us for general information and resources by calling (415) 473-7191.  We are also available online!  As a reminder, please only call 9-1-1 if you are experiencing a life-threatening emergency.


Spread the word: How your friends and family can receive these updates:

  • Text "MARIN COVID" to 468311 to receive text message notifications      
  • Subscribe online to receive email notifications
  • Tweet & share this update with your friends on Twitter!