County of Marin Health and Human Services

Influenza Surveillance Update - Week Ending November 30, 2019

Information on Service Adjustments During the COVID-19 Emergency

HHS is the County’s largest department with more than 700 employees who work at many sites throughout Marin. Many HHS offices have reopened with limited staffing to the public. Staff will continue to provide services remotely when possible for safety reasons, and residents in need of HHS services should consider conducting conversations over the phone or email when possible. Please call ahead if you have an appointment or require in-person assistance.

  • Adult Protective Services: (415) 473-2774.
  • Skilled Nursing/Assisted Living Ombudsman: (415) 473-7446.
  • Child Protective Services: (415) 473-7153.
  • Public Assistance Call Center (Medi-Cal, CalFresh, CalWorks): 1 (877) 410-8817, or visit
  • General Relief: (415) 473-3450.
  • Behavioral Health and Recovery Services Access Line: 1 (888) 818-1115.
  • For information on resources and services specifically for older adults (persons 60+), persons with disabilities and family caregivers, call (415) 473-INFO (415) 473-4636 or email
  • HHS created a phone hotline, (415) 473-7191 (CRS 711), and an online contact form, for residents to contact staff with questions or concerns about the virus and about the county and community response. The call center is open from 9:30 a.m. to noon and 1 to 5 p.m. weekdays, and interpreter services are available.
  • Dial 711 for CA Relay Service (link is external)



Influenza season is here, and influenza-like illness activity is on the rise in Marin. Positive tests began to increase in September this year and continue to rise. Current data suggests an earlier flu season during 2019-20.

Influenza-like Illness Activity

Flu activity has increased and is within expected levels for this time of year. Discharge data from Kaiser San Rafael, MarinHealth Medical Center, and Novato Community Hospital emergency departments showed the percentage of visits associated with influenza-like illness (ILI) was 8.2% during week 48 (Nov. 24-30). See Figure 1 below. 

Figure 1. Proportion of Visits due to Influenza-Like Illness (ILI):  Kaiser San Rafael, MarinHealth Medical Center, and Novato Community Hospital Emergency Departments, 2017-2018, 2018-2019, and 2019-2020 Influenza Seasons


Influenza testing

During week 48 (Nov. 24-30), 17.9% of the  specimens tested for influenza were positive.  During this influenza season through November 30, 61 specimens have tested positive for influenza. See Figure 2 below. 

Figure 2. Influenza Tests in Marin County, 2019-2020 Influenza Season


Influenza Related Deaths: There have been two influenza related deaths in Marin County in the 2019-2020 flu season.

Visit for influenza vaccination, testing, and treatment recommendations.


The geographic spread of influenza activity in California was widespread during week 49 (Dec. 1-7).
Outpatient influenza-like illness and hospitalizations were above expected levels.
Visit the California Department of Public Health’s influenza website here for more information.  

United States

National influenza activity is increasing during week 49 (Dec. 1-7).
For additional national influenza data, visit the Center for Disease Control and Prevention's influenza surveillance website here.

If you have any questions or comments please contact:
Lisa Santora, MD
Deputy Public Health Officer
(415) 473-4163

This publication is provided to you by the Office of the Public Health Officer, County of Marin Department of Health and Human Services.


California Department of Public Health. Accessed 12/16/19.

Centers for Disease Control and Prevention. Accessed 12/16/19.

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