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Isolation Table

A B C D E F G H I K L M N O P Q R S T U V W Y Z

Herpes simplex (herpesvirus hominis)
Condition	Isolation	Duration of Isolation	Comment
Mucocutaneous, disseminated or primary, severe	Contact Standard	Until lesions are dry and crusted
Mucocutaneous, recurrent (skin, oral, genital)	Standard

Herpes zoster (see varicella zoster)
Condition	Isolation	Duration of Isolation	Comment
			See varicella zoster

Histoplasmosis
Condition	Isolation	Duration of Isolation	Comment
	Standard

Hookworm disease (ancylostomiasis, uncinariasis) (Ancylostoma duodenale, Necator americanus)
Condition	Isolation	Duration of Isolation	Comment
	Standard

Human metapneumovirus
Condition	Isolation	Duration of Isolation	Comment
	Contact Droplet	Adult and Pediatric hematology/oncology/BMT patients: Duration of illness AND retest is negative. All other patients: Duration of symptoms

Impetigo
Condition	Isolation	Duration of Isolation	Comment
	Contact	Until 24 hours after initiation of effective therapy

Infectious mononucleosis
Condition	Isolation	Duration of Isolation	Comment
	Standard

Influenza (A, B, or unknown subtype); seasonal influenza
Condition	Isolation	Duration of Isolation	Comment
Benioff Children's Hospital and Pediatricts	Contact Droplet	Pediatric hematology/oncology/BMT patients: Duration of illness AND retest is negative. All other patients: Duration of illness	Initiate isolation when test is ordered to rule out viral pathogens. If discrete or continuous aerosol generating procedure performed, post Aerosol Generating Procedure in progress sign. Wear the appropriate PPE during the procedure and if applicable, when entering the room 1 hr after the procedure. Refer to: Guidance for PPE use for High Risk Aerosol Generating Procedures'
Adult Services	Droplet	Adult hematology/oncology/BMT patients: Duration of illness AND retest is negative. All other patients: Duration of illness	Initiate isolation when test is ordered to rule out viral pathogens. If discrete or continuous aerosol generating procedure performed, post Aerosol Generating Procedure in progress sign. Wear the appropriate PPE during the procedure and if applicable, when entering the room 1 hr after the procedure. Refer to: Guidance for PPE use for High Risk Aerosol Generating Procedures'

Influenza, Avian (e.g., H5N1, H7N9)
Condition	Isolation	Duration of Isolation	Comment
Benioff Children's Hospital and Pediatrics	Contact Droplet	Pediatric hematology/oncology/BMT patients: Duration of illness AND retest is negative. All other patients: Duration of illness	Initiate isolation when test is ordered to rule out viral pathogens. If discrete or continuous aerosol generating procedure performed, post Aerosol Generating Procedure in progress sign. Wear the appropriate PPE during the procedure and if applicable, when entering the room 1 hr after the procedure. Refer to: Guidance for PPE use for High Risk Aerosol Generating Procedures'
Adult Services	Droplet	Adult hematology/oncology/BMT patients: Duration of illness AND retest is negative. All other patients: Duration of illness	Initiate isolation when test is ordered to rule out viral pathogens. If discrete or continuous aerosol generating procedure performed, post Aerosol Generating Procedure in progress sign. Wear the appropriate PPE during the procedure and if applicable, when entering the room 1 hr after the procedure. Refer to: Guidance for PPE use for High Risk Aerosol Generating Procedures'

Kawasaki syndrome
Condition	Isolation	Duration of Isolation	Comment
	Standard

Lassa fever (see Viral Hemorrhagic Fevers)
Condition	Isolation	Duration of Isolation	Comment

Legionella (Legionnaires’ disease)
Condition	Isolation	Duration of Isolation	Comment
(Legionella sp.)	Standard

Leprosy
Condition	Isolation	Duration of Isolation	Comment
(Mycobacterium leprae)	Standard

Leptospirosis
Condition	Isolation	Duration of Isolation	Comment
(Leptospira sp.)	Standard

Lice
Condition	Isolation	Duration of Isolation	Comment
Head lice (pediculosis)	Contact Standard	24 hours after treatment (shampoo or oral medication)	Comb patient's hair with metal, long-toothed nit comb (available from Pharmacy) at least daily x 2 wks Change patient gown and linen post treatment Guidance at https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/HeadLice.aspx Also, please see Lice Tip Sheet
Body lice	Standard
Pubic lice	Standard

Listeriosis
Condition	Isolation	Duration of Isolation	Comment
(Listeria monocytogenes)	Standard

Lyme disease
Condition	Isolation	Duration of Isolation	Comment
(borreliosis, Borrelia burgdorferi)	Standard

Lymphocytic choriomeningitis
Condition	Isolation	Duration of Isolation	Comment
	Standard

Lymphogranuloma venereum
Condition	Isolation	Duration of Isolation	Comment
	Standard

Malaria
Condition	Isolation	Duration of Isolation	Comment
	Standard

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