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Health Provider Alerts


April 30, 2019

Extension of Flu Health Officer Order

Although influenza activity is decreasing across the nation, in certain areas, including Sonoma County, activity remains widespread and significantly elevated above baseline. Read full story


April 24, 2019

Health Advisory: Measles Outbreak in California

Advise patients with suspected measles to stay home with no visitors until at least 4 days after rash onset AND cleared by Sonoma County Disease Control to resume usual activities. Read full story


October 24, 2018

Influenza Health Advisory

Influenza activity within Sonoma County and California is currently low; however, some local healthcare providers are beginning to diagnose influenza. Read full story


August 22, 2018

Health Advisory: Homeless Healthcare Reminder

Consider screening for infectious diseases that are not uncommon in homeless communities such as TB, sexually transmitted infections (Syphilis, Chlamydia, and Gonorrhea), HIV, and Hepatitis A/B/C. Seize the opportunity of a healthcare visit and avoid delaying next steps. Read full story


August 2, 2018

Health Advisory: Increased Deaths Involving Fentanyl and Fentanyl Analogs

In Sonoma County, suspected accidental fentanyl related deaths have increased (12 in 2018 as of 7/31/18, 5 in 2017, and 3 in 2016). In California, fentanyl deaths increased from 2016 to 2017 by 57%. In 2017, 373 fentanyl deaths and 1,882 opioid overdose deaths were reported in California. Read full story


January 29, 2018

Health Advisory: Continued Increase in Syphilis Cases

There continues to be an increase in early syphilis cases in Sonoma County, including known transmission within heterosexual networks resulting in cases among women of childbearing age. Rising numbers among women increase the potential for congenital syphilis which can cause devastating outcomes for newborns including stillbirth or infant death. Read full story


December 21, 2017

Health Advisory: Hepatitis A Outbreaks in California; Prevention Recommendations

This is an update to the September 2017 Hepatitis A Outbreak health advisory. Read full story


December 18, 2017

Health Advisory: Managing Stress After a Disaster

Due to the traumatic events of the October firestorm, many Sonoma County residents are experiencing stress reactions consistent with an exposure to a disaster.We are encouraging all health care providers in the community to be aware of the mental health needs of their patients and to provide appropriate support. Please review the Health Advisory for more information, specific requested actions and resources. Read full story


September 28, 2017

Health Advisory: Hepatitis A Outbreaks in California; Prevention Recommendations

Currently, we have no outbreak associated casesof hepatitis A in Sonoma County. However, several California counties (San Diego, Santa Cruz, and Los Angeles) are reporting outbreaks of genotype IB strains of hepatitis A virus (HAV) among individuals who are homeless and/or using illicit drugs. Additional California counties, Arizona and Utah are reporting cases associated with the outbreaks. Read full story


January 17, 2017

Health Update: Influenza

Influenza activity is rapidly increasing in California and Sonoma County, although other respiratory viruses are also circulating (e.g. RSV). Read full story