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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

Haemophilus influenzae (see disease-specific recommendations)
Condition	Isolation	Duration of Isolation	Comment
			ie Pneumonia, epiglottitis, meningitis

Hand, foot and mouth disease (see Enteroviral infection)
Condition	Isolation	Duration of Isolation	Comment
			See enterovirus

Hansen’s Disease (see Leprosy)
Condition	Isolation	Duration of Isolation	Comment

Hantavirus
Condition	Isolation	Duration of Isolation	Comment
pulmonary syndrome	Standard

Helicobacter pylori
Condition	Isolation	Duration of Isolation	Comment
	Standard

Hepatitis, viral
Condition	Isolation	Duration of Isolation	Comment
Hepatitis, viral Type A	Standard		Provide hepatitis A vaccine postexposure as recommended.
Hepatitis, viral Type A-Diapered or incontinent patients	Contact Standard	Age < 3 year: Duration of hospitalization Age 3-14 years: Until 2 weeks after onset of symptoms All others: Until 1 week after onset of symptoms	Maintain Contact Precautions in infants and children 14 yrs. of age for 1 week after onset of symptoms
Hepatitis, viral Type B-HBsAg positive; acute or chronic	Standard		See specific recommendations for care of patients in hemodialysis centers.
Hepatitis, viral Type C and other unspecified non-A, non-B	Standard		See specific recommendations for care of patients in hemodialysis centers.
Hepatitis, viral Type D (seen only with hepatitis B)	Standard
Hepatitis, viral Type E	Standard		Use Contact + Standard Precautions for diapered or incontinent individuals for the duration of illness.
Hepatitis, viral Type G	Standard

Herpangina (see Enteroviral infection)
Condition	Isolation	Duration of Isolation	Comment
			See enterovirus

Herpes simplex (herpesvirus hominis)
Condition	Isolation	Duration of Isolation	Comment
Neonatal	Contact Standard	Until mucocutaneous lesions are dry and crusted	Use contact isolation, for asymptomatic, exposed infants delivered vaginally/via C-section 1) if mother has active infection, 2) membranes have been ruptured for more than 4 hours until infant surface cultures obtained at 24-36 hours of age are negative after 48 hours incubation
If encephalitis ONLY	Standard
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