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
Abscess, draining
Condition Isolation Duration of Isolation Comment
Major

Duration of illness (i.e., until drainage stops or can be contained by a dressing)

“Major” defined as “Dressing does not contain drainage adequately”

Minor or limited

Only standard precautions needed if dressings cover and contain drainage. Note: standard precautions includes the use of gloves when touching blood, body fluids, and non-intact skin.

Acinetobacter baumannii
Condition Isolation Duration of Isolation Comment
Multi-drug resistant (defined as carbapenemase-producing)
Non-carbapenemase-producing
Acquired immunodeficiency syndrome (AIDS), Human Immunodeficiency Virus (HIV)
Condition Isolation Duration of Isolation Comment

Postexposure chemoprophylaxis for some blood exposures. See Bloodborne Pathogens Exposure Plan for more details.

Actinomycosis (Actinomyces sp.)
Condition Isolation Duration of Isolation Comment
Acute Flaccid Myelitis/Paralysis
Condition Isolation Duration of Isolation Comment

Duration of illness

If Acute Flaccid Myelitis (AFM) is suspected, contact Infection Prevention.  Business hours: 415-806-0269; non-business hours: Notify Nursing Supervisor.

Adenovirus
Condition Isolation Duration of Isolation Comment
Conjunctivitis

Duration of illness

Gastroenteritis

Duration of illness

Respiratory infection, in infants and young children

Duration of illness

Respiratory infection, all other patients

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

All other patients: Duration of illness

Immunocompromised patients may have prolonged viral shedding and may require extended duration of Contact and Droplet precautions.

Amebiasis
Condition Isolation Duration of Isolation Comment
Anthrax (Bacillus anthracis)
Condition Isolation Duration of Isolation Comment
Cutaneous
Pulmonary
Antibiotic-associated colitis (see Clostridioides difficile)
Condition Isolation Duration of Isolation Comment
Arthropod/mosquito-borne viral infections
Condition Isolation Duration of Isolation Comment
(viral encephalitides [eastern, western, Venezuelan equine encephalomyelitis; St Louis, California encephalitis; West Nile Virus] and viral fevers [dengue, yellow fever, Colorado tick fever])

Not transmitted from person to person except rarely by transfusion, and for West Nile virus by organ transplant, breastmilk or transplacentally

Ascariasis (Ascaris sp.)
Condition Isolation Duration of Isolation Comment
Aspergillosis (Aspergillus sp.)
Condition Isolation Duration of Isolation Comment
Avian influenza (see Influenza, Avian below)
Condition Isolation Duration of Isolation Comment
Babesiosis
Condition Isolation Duration of Isolation Comment
Blastomycosis, (Blastomyces sp)
Condition Isolation Duration of Isolation Comment
North American, cutaneous or pulmonary
Bordatella spp. (Also see Pertussis and Whooping Cough below)
Condition Isolation Duration of Isolation Comment
B. pertussis

Until 5 days after patient is placed on effective therapy 

B. parapertussis

Until 5 days after patient is placed on effective therapy 

Botulism
Condition Isolation Duration of Isolation Comment
Bronchiolitis
Condition Isolation Duration of Isolation Comment

Duration of illness

Initiate isolation when test is ordered to rule out viral pathogens

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