Epidemiology & Assessment

The Epidemiology and Assessment unit’s medical directors, public health nurses, and epidemiologists investigate individual cases and outbreaks of reported communicable disease (see List of Reportable Diseases) per the State of California Code of Regulations. We monitor disease trends, and often provide current statistics and other information to doctors, hospitals, the public and news media. For more information or CD reporting 24/7 call 714-834-8180.

For questions or comments, please email epi@ochca.com.

Latest News & Health Advisories

CD Health Alert: Candida auris in OC: Update for Skilled Nursing FacilitiesJune 10, 2019
Multiple patients colonized or infected with Candida auris ( C. auris) have been identified in Orange County. This cluster of cases is the first identified in Southern California.
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CD Health Alert: Update: Candida auris in Orange CountyMay 30, 2019
Patients colonized or infected with Candida auris ( C. auris ) continue to be identified in Orange County. In communities experiencing C. auris outbreaks in this country, colonization rates have consistently been highest in residents of long term acute care hospitals (LTACs) and skilled nursing facilities that provide ventilator care (vSNFs).
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CD Health Alert: Update - Measles in Orange CountyMay 24, 2019
No additional cases of measles have been identified in Orange County since the last update.
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CD Health Alert: Update: Measles Cases Confirmed in Orange CountyMay 17, 2019
One additional Orange County measles case was identified this week, a close contact of a previously identified case. In the last three weeks, four cases of measles have been identified who have Orange County connections: three Orange County residents and a Long Beach resident who is a student at the University of California-Irvine. Orange County clinicians should consider measles in patients who have the appropriate clinical presentation.
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CD Health Alert: Update: Measles Cases Confirmed in Orange CountyMay 7, 2019
Two cases of measles infection have been diagnosed in Orange County (OC) residents in the last ten days. One is an adult who acquired measles through international travel, the other is a child under a year of age who has no history of travel. An additional case has been identified in an adult resident of Long Beach who is a student at the University of California, Irvine and has no travel history. None of the these cases have a known social connection to each other.
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