The mnemonic
Contact, Droplet, Airborne
What each word stands for
- ContactGloves and gown: MRSA, C. difficile, scabies
- DropletSurgical mask: influenza, meningococcus, pertussis
- AirborneN95 and negative-pressure room: tuberculosis, measles, varicella
Why it matters clinically
Chooses the right protective equipment for isolation of a patient in a ward.
Where it stops being reliable
Standard precautions apply to all patients, and some diseases need more than one category.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.