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Acute Communicable Disease Control

Acute Communicable
Disease Control

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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

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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.	Head Lice Information Page 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 Information Page
	Minimum of 5 confirmed cases or suspected cases with symptoms consistent with HFMD occurring within 3 to 5 days and within a linked setting.	24 hours after resolution of fever and mouth sores have healed.	HFMD Information Page 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 Information Page 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 Information Page Influenza Procedures Respiratory Disease Outbreaks Procedures

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

	Los Angeles County Reportable Disease List

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