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

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)

See Multidrug resistant organisns ( MDRO) for further definitions

Non-carbapenemase-producing

See Multidrug resistant organisns ( MDRO) for further definitions

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 (https://ucsf.app.box.com/s/teqpxzwqao266snuo8dxc3o871tr867c) 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 San Francisco DPH 415-554-2830

Adenovirus
Condition Isolation Duration of Isolation Comment
Conjunctivitis

Duration of illness

Gastroenteritis

Duration of illness

Use Contact + Standard Precautions for diapered or incontinent persons for the duration of illness or to control institutional outbreaks

Respiratory infection

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 + Standard and Droplet + Standard precautions.

Amebiasis
Condition Isolation Duration of Isolation Comment
Anthrax (Bacillus anthracis)
Condition Isolation Duration of Isolation Comment
Pulmonary

Use Contact + Standard if large amount of uncontained drainage. Wash hands with soap and water.

Cutaneous

Use Contact + Standard if large amount of uncontained drainage. Wash hands with soap and water.

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. 
No HCW restriction; treat as any other bloodborne pathogen (face and eye protection, gloves, gown if splash is anticipated)

Ascariasis (Ascaris sp.)
Condition Isolation Duration of Isolation Comment
Aspergillosis (Aspergillus sp.)
Condition Isolation Duration of Isolation Comment

Airborne + Contact + Standard if massive soft tissue infection with copious drainage and repeated irrigations required

Avian influenza (see Influenza, Avian below)
Condition Isolation Duration of Isolation Comment