Contact Information
Los Angeles County
Department of Public Health
Immunization Program
3530 Wilshire Blvd. Suite 700
Los Angeles, CA 90010
Phone: (213) 351-7800
Fax: (213) 351-2780

Perinatal Hepatitis B Prevention Unit
Phone: (213) 351-7400
Fax: (213) 351-2781

Haemophilus influenzae type b (Hib) bacteria, once a common cause of ear infection in children, can cause serious disease that usually strikes children under 5 years of age. The bacterium is mainly found in the tissues of the nose and throat, but can spread to the brain or bloodstream causing serious complications such as meningitis (infection of the brain), pneumonia, or sepsis (infection of the blood).  Symptoms can quickly progress and may lead to coma or death.  Some children may recover from the disease but may have permanent damage such as hearing loss and developmental disabilities.

Hib vaccine is highly effective at preventing haemophilus influenzae type b disease.  Use of the Hib vaccine has caused the incidence of disease to decrease so that its occurrence is rare.  Infants and young children should receive four doses of the Hib vaccine at 2, 4, 6, and 12-15 months of age for optimal protections against haemophilus influenzae.  The vaccine is not recommended for infants less than 6 weeks of age or children over 5 years of age. 

Information and Resources for Families Information and Resources for Providers


Reporting Guidelines and Resources Alerts, Updates, and Reports

Report invasive haemophilus influenzae cases in individuals who are less than 15 years of age to the Los Angeles County Department of Public Health within 1 working day by submitting the Confidential Morbidity Report (CMR) Form

Business Hours: 
Phone: (888) 397-3993

Fax: (888) 397-3778 

After Business Hours 
Phone: (213) 974-1234

Laboratory Testing Guidelines For
Measles and Mumps
It's Flu Season
Immunization Skills Institute
Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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