Hong Kong Training Portal on
Infection Control and Infectious Disease

There are two tiers of isolation precautions to prevent transmission of infectious agents: Standard and Transmission-Based Precautions.

Standard Precautions are the minimum infection prevention practices that apply to all patient care, regardless of suspected or confirmed infection status of the patient, in any setting where health care is delivered. They include hand hygiene, use of PPE, respiratory hygiene/cough etiquette, sharps safety, safe injection practice, sterile instruments and devices, clean and disinfected environmental surfaces. 

Transmission-based precautions are additionally adopted precautions to prevent the spread of infective agents through specific routes of transmission (contact, droplet and airborne).