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

Update for Medical Providers: Apparent Mycobacterium abscessus Infections Associated with a Local Dental Clinic

October 25, 2016
Apparent Mycobacterium abscessus dental infections have been reported in some patients cared for at the 2156 East Lincoln Avenue office of Children's Dental Group in Anaheim. Oral cellulitis, often with dental abscess, has been reported following dental pulpotomy procedures. The facility is continuing to work with the Orange County Health Care Agency to address the situation.


Hepatitis A Cases in Orange County ResidentsOctober 24, 2016
Three cases of hepatitis A virus (HAV) infection have been diagnosed in Orange County residents in the last month.

CD Connection Newsletter - OctoberOctober 19, 2016
First West Nile Virus-Associated Death of 2016 Reported in Orange County

Datos Mycobacterias para los padres15 Septiembre 2016
¿Son todos los niños que recibieron pulpotomia en desarrollo de una enfermedad
Sólo un pequeño porcentaje de los niños que recibieron un procedimiento de pulpotomía en esta clínica se han enfermado. Sin embargo, se pueden presentar más casos.
La Agencia del Cuidado de Salud (HCA) está trabajando con la facilidad de Children’s Dental Group para asegurar que los nuevos casos se identifican rápidamente.

Mycobacterium Facts for ParentsSeptember 15, 2016
Are all children who received a pulpotomy developing illness? Only a small percentage of children who had a pulpotomy procedure at this clinic have become ill. However, more cases may occur. The Health Care Agency’s Public Health Services team is working with Children’s Dental Group to assure that any new cases are identified quickly.