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
Parainfluenza
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

Initiate isolation when test is ordered to rule out viral pathogens.

All other patients

Adult and 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.

Parvovirus B19 (Erythema infectiosum)
Condition Isolation Duration of Isolation Comment
Immunosuppressed patient

For duration of hospitalization when chronic disease occurs

Duration of precautions for immunosuppressed patients with persistently positive PCR not defined, but transmission has occurred [929].

Patient with transient aplastic or red-cell crisis

Seven days from symptom onset if known. Use date of identification if symptom onset date unclear. 

Pediculosis (see lice)
Condition Isolation Duration of Isolation Comment
Pertussis (whooping cough)
Condition Isolation Duration of Isolation Comment

Until 5 days of effective antibiotic therapy

Pinworm infection
Condition Isolation Duration of Isolation Comment
Plague (Yersinia pestis)
Condition Isolation Duration of Isolation Comment
bubonic
pneumonic

Until 48 hrs after initiation of effective therapy

Pneumonia due to
Condition Isolation Duration of Isolation Comment
Bacterial, not listed elsewhere
Burkholderia cepacia in cystic fibrosis patients, including respiratory tract colonization
Burkholderia cepacia in patients without cystic fibrosis
Chlamydia
Fungal
H. influenzae, Infants and children (any age)
H. influenzae, All other patients

Until 24 hours after initiation of effective theraphy

Legionella
Meningococcal (N.meningitidis)

Until 24 hours after initiation of effective therapy

Multidrug-resistant bacterial (see Multidrug-Resistant Organisms)
Mycoplasma (primary atypical pneumonia)

Duration of illness

Pneumococcal (Streptococcus pneumoniae)
Pneumocystis carinii
Staphylococcus aureus (nafcillin/methicillin sensitive OR resistant)
Streptococcus pyogenes (group A strep)

Until 24 hours after initiation of effective therapy

Varicella-Zoster (See Varicella-Zoster)

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