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Breaking News: Health Advisory for Contra Costa County

Last updated: November 16, 2018, 9:52 am

Poor air quality in Contra Costa is expected to continue through the weekend due to the Camp Fire in Butte County. Stay indoors when possible and keep doors and windows closed. Avoid prolonged outdoor activity. Masks are not a substitute for staying indoors. Seek medical attention if you experience symptoms such as difficulty breathing, persistent coughing, wheezing, chest tightness, heart palpitations, nausea, fatigue or light-headedness. Visit baaqmd.gov for air quality information. Visit airnow.gov for current air quality conditions in your zip code. Visit cchealth.org/wildfire for smoke-related health information.

Health Provider Information about Pertussis


A recent increase in cases of pertussis has been reported in Contra Costa County. The most severe cases of pertussis occur in young infants. Infants less than 6 months of age are most likely to be hospitalized and infants less than 3 months of age are most likely to die from pertussis infection. It is important to be vigilant of the early recognition and aggressive treatment of pertussis in infants less than 6 months to prevent poor outcomes. With health care professionals likely seeing more patients with suspect pertussis the polymerase chain reaction (PCR) diagnostic test is an important tool for timely diagnosis. The most important strategy to prevent infection in vulnerable infants is Tdap vaccination of the mother. All pregnant women should receive Tdap vaccine during each pregnancy, any trimester but preferably between 27-36 weeks gestation, regardless of their vaccination history.


Reporting Criteria

  1. Report any suspect or laboratory confirmed case of pertussis within one working day of identification (Title 17, California Code of Regulations (CCR) §2500); and
  2. Immediately report outbreak by phone to Contra Costa Public Health Communicable Disease Programs at 925-313-6740.

Additional Resources



Physicians who need to report a suspected public health emergency should contact the Public Health division immediately at 925-313-6740; or after hours, call the sheriff's dispatch at 925-646-2441 and ask for the Health Officer On Call.


See more information designed specifically for health care providers.