Acute Communicable
Disease Control

 
Contact Information
County of Los Angeles
Department of Public Health
Acute Communicable Disease Control
313 N. Figueroa Street, #212
Los Angeles, CA 90012
Phone: (213) 240-7941
Fax: (213) 482-4856
Email:acdc2@ph.lacounty.gov

Call 211 For Information 24/7

Have questions about things like where to go for vaccinations or other health care services?

Call 2-1-1.

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Acute Communicable Disease Control


The Los Angeles County Department of Public Health (LAC DPH) has modified the outbreak criteria for several diseases that are common among school-aged children. These changes became effective as of January 14, 2019. The revised outbreak criteria and LAC DPH’s policy for when students ill with these diseases can return to school are described below. 

To report suspected outbreaks or other reportable diseases or conditions, contact the Communicable Disease Reporting System
Tel: (888) 397-3993
Fax: (888) 397-3778 or (213) 482-5508

For questions or requests for additional materials email: acdc2@ph.lacounty.gov

Los Angeles County
Common Infectious Diseases among School-Aged Children
Outbreak and Exclusion Criteria
(PDF)
Disease Outbreak Definition Student can return... ACDC Procedural Manual
(B-73)
Minimum of 5 cases in a linked setting (common classroom, team, etc.)

Guidance on Head Lice Prevention and Control for School Districts and Childcare Facilities
With confirmation of treatment and no live lice. Lice
Procedures
Minimum of 3 cases or suspected cases with symptoms consistent with MRSA occurring within 3 to 5 days and within a linked setting.

No exclusion; however, ensure no fever and can adequately cover infected area.

MRSA
Procedures
(pending)
Minimum of 5 confirmed cases or suspected cases with symptoms consistent with HFMD occurring within 3 days and within a linked setting. 24 hours after resolution of fever and mouth sores have healed. HFMD Procedures
Minimum of 5 confirmed or suspected cases with symptoms consistent with conjunctivitis occurring within 3 to 5 days and within a linked setting. 24 hours after resolution of symptoms. Conjunctivitis Procedures (pending)
Minimum of 3 cases or suspected cases with symptoms consistent with norovirus occurring within 3 to 5 days and within a linked setting.

Norovirus Toolkit for School and Childcare Center Outbreaks
48 hours after resolution of symptoms. Norovirus Procedures
At least 10% of average daily attendance absent with respiratory illness over a 3-day period facility wide
OR
20% of an epidemiologically-linked group (such as a single classroom, sports team, or after-school group) ill with similar respiratory symptoms, with a minimum of 5 ill, sustained over a 3-day period.
24 hours after resolution of fever. Student might have a lingering cough—this is not a reason for exclusion. Influenza Procedures

Additional Resources
Health Education Materials Respiratory Hygiene Materials LAC DPH School Portal
Report A Disease Diseases and Conditions: Listing LA Health Alert Network

Reportable Diseases
and Conditions

 
 
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