CPT and SARS

With chest physical therapy, the person gets in different positions to use gravity to drain mucus (postural drainage) from the five lobes of the lungs. Each position is designed so that a major part of the lung is facing downward. When combined with percussion, it may be known as postural drainage and percussion. This is where a caregiver or partner can clap and or vibrate the person’s chest to further dislodge and move the mucus to the larger airways where it can be coughed or huffed (氣喘吁吁) out of the body.
https://www.cff.org/Life-With-CF/Treatments-and-Therapies/Airway-Clearance/Chest-Physical-Therapy/

Scrupulous (一絲不苟的) precautions should be taken during procedures like nebulisation (really practising for SARS patients?), bronchoscopy, chest physiotherapy and gastroscopy. Standard precautions like hand washing and eye protection should be made mandatory for all care takers. Contact precautions like use of gloves, gowns and masks should be enforced for all people coming in contact with the patient or his surroundings. N-95 respirators are recommended.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921718/