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
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
Helicobacter pylori
Condition Isolation Duration of Isolation Comment
Hemorrhagic fevers or acute hemorrhagic conjunctivitis
Condition Isolation Duration of Isolation Comment
(Ebola, Lassa, Marburg, Crimean-Congo)

Duration of illness

See Ebola

If this condition is suspected, CONTACT INFECTION PREVENTION (Business hours: 415-806-0269; non-business hours: Notify Nursing Supervisor) AND INFECTIOUS DISEASE IMMEDIATELY.

Hepatitis, viral
Condition Isolation Duration of Isolation Comment
Hepatitis, viral Type A

Provide hepatitis A vaccine postexposure as recommended.

Hepatitis, viral Type A-Diapered or incontinent patients

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

See specific recommendations for care of patients in hemodialysis centers.

Hepatitis, viral Type C and other unspecified non-A, non-B

See specific recommendations for care of patients in hemodialysis centers.

Hepatitis, viral Type D (seen only with hepatitis B)
Hepatitis, viral Type E

Use Contact Precautions for diapered or incontinent individuals for the duration of illness.

Hepatitis, viral Type G
Herpangina (see Enteroviral infection)
Condition Isolation Duration of Isolation Comment

See enterovirus

Herpes simplex (herpesvirus hominis)
Condition Isolation Duration of Isolation Comment
Neonatal

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
Mucocutaneous, disseminated or primary, severe

Until lesions are dry and crusted

Mucocutaneous, recurrent (skin, oral, genital)
Herpes zoster (see varicella zoster)
Condition Isolation Duration of Isolation Comment

See varicella zoster

Histoplasmosis
Condition Isolation Duration of Isolation Comment
Hookworm disease (ancylostomiasis, uncinariasis) (Ancylostoma duodenale, Necator americanus)
Condition Isolation Duration of Isolation Comment
Human metapneumovirus
Condition Isolation Duration of Isolation Comment
Infants and young children

Adult and Pediatric hematology/oncology/BMT patients:
Duration of illness AND retest is negative.
All other patients: Duration of illness

See also Metapneumovirus

All other patients

Adult and Pediatric hematology/oncology/BMT patients:
Duration of illness AND retest is negative.

All other patients: Duration of illness

See also Metapneumovirus