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Public Health Status Update for 05/24/2024

Marin County Public Health Status Update for May 24, 2024, includes Wastewater Monitoring for H5N1 Bird Flu Begins in Marin; Play Marin: Health Equity in Action; Vaccines Shield Against Long COVID; CalFresh and Food… Read More

COVID-19 Status Update for 01/27/2023

Marin County COVID-19 Status Update for January 27, 2023 includes: COVID-sniffing Dogs Back; CDC Reveals Bivalent Booster Effectiveness; Optum Serve/LHI Testing Sites Closing February 4th; and updated local COVID-19 data.

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The Marin County COVID-19 Status Update is published weekly and as needed to share important news and resources related to the COVID-19 pandemic response. We remain here for you.

COVID-19 Sniffing Dogs Back at Skilled Nursing Facilities (SNFs)

Last week, a long-term care facility in Marin that was experiencing a COVID-19 outbreak received support from an unusual source – COVID-19 sniffing dogs. This week, they are back! A team of retrievers trained to detect COVID-19 infection helped screen potentially infected residents. The yellow labs (Scarlett and Rizzo) have been trained in a laboratory setting to detect smells specific to COVID-19. During 2021 and 2022 the dogs helped detect COVID-19 infections among students in elementary schools.

Now, for the first time, dogs are being brought into skilled nursing facilities to support COVID-19 detection among individuals at high-risk of serious disease. Staff and residents were delighted to watch the energetic and friendly dogs at work. After the dogs checked them for COVID-19, residents were excited to be able to pet and interact with the sweet canines. 

“Our hope is to get the dogs used to working safely and efficiently in this new environment where they can make a big difference helping with early disease detection in high-risk settings.” Says Dr. Lael Duncan, Deputy Health Officer. “Witnessing the joy they bring to facility staff and residents is a bonus for everyone.”

CDC Reveals Bivalent Booster Effective Against Circulating COVID-19 Variants

The CDC has confirmed results showing that a bivalent mRNA booster dose provided additional protection against symptomatic infection from the COVID-19 Omicron subvariants XBB/XBB.1.5 for at least the first three months after vaccination in people who had previously received 2-4 monovalent vaccine doses. Report details can be found at Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness.


Optum Serve/LHI Testing Sites Closing February 4, 2023

Optum Serve/LHI offers FREE testing for uninsured and insured Marin residents. The last day for testing at Optum Serve/LHI sites is February 4, 2023. Appointments are required. Book an appointment online. For more information, visit COVID-19 Testing or call (888) 634-1123. If you prefer to test at home, the deadline to receive free at-home COVID-19 tests is approaching. Order COVID-19 Home Tests | USPS while supplies are still available.

Know your COVID-19 Community Level

The CDC’s COVID-19 Community Levels are a tool to help communities decide what prevention steps to take based on the latest data. Levels can be low, medium, or high and are determined by looking at hospital beds being used, hospital admissions, and the total number of new COVID-19 cases in an area. Take precautions to protect yourself and others from COVID-19 based on the COVID-19 Community Level in Marin or other community in which you live, work or visit.



Todays’ COVID-19 Community Level:

Suggested Prevention Steps:

Marin County


People may choose to mask at any time. People with symptoms, a positive test, or exposure to someone with COVID-19 should wear a mask.

COVID-19 Data Update:

Below is just a snapshot of local COVID-19 data. Find a more in-depth analysis of COVID-19 trends on the Marin Data & Surveillance webpage, our Data FAQ, or Marin County's Open Data Portal.

Data sets updated weekly (published on Fridays) include:

  • COVID-19 vaccination rates
  • COVID-19 cases & deaths among facility staff and residents
  • Weekly/Cumulative count of COVID-19 deaths among Marin residents
  • State COVID-19 Data

Status updates are now published weekly on Fridays. “Change from Last Status Update” accounts for 7 days of data, unless noted otherwise (view past status updates).


COVID-19 Case Data

Today’s Report

Change from Last Status Update on January 20, 2023

Total Confirmed Cumulative Cases


+ 69

“Active Cases” (Confirmed in Past 10 Days)


- 27

Total Cumulative Deaths


+ 0*

Current COVID-19 Hospitalizations


- 3

Current COVID-19 ICU Patient Census


- 1

* Change from last Friday.

COVID-19 Vaccination Data

Today’s Report

Change from Last Week

Percent of Marin residents vaccinated with at least one dose



Percent of Marin population who have completed vaccine series.


+ 0.1%

Percent of Marin residents who have received a Booster/3rd Dose


+ 0.1%

* * As population estimates may not be precise, the proportion of vaccinated people in any group will be displayed up to, but not higher than 98%. 

* Note that this percentage is out of all Marin residents including children younger than 6 months.

Residential Care & Skilled Nursing Facility COVID-19 data:

Today’s Report

Change from Last Week

Positive Patients at Facilities cumulative


+ 0

Positive Patients at Facilities current


+ 0

Positive Staff at Facilities current


 + 0

Facility Patient Deaths


+ 0

Facility Patient Deaths as percentage of all COVID+ deaths


 + 0.0%


State COVID-19 data:

Today’s Report

Change from Last Week

California Confirmed Cases


+ 19,936

California Deaths


+ 330

Resource Link Library

What to do if...

You’ve tested Positive | You’ve been exposed to someone with COVID-19

Online Resources

Vaccine locations | Booster Information | Free COVID-19 testing | Marin COVID-19 Data | State COVID-19 Data | State Race & Ethnicity Data  | State Variant Data | CDC Community Transmission Data

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