Table 1 Summary of exposure risk categories used by NSW Health (source: CDNA Series of National Guidelines on Ebola virus disease [22])

Very low risk

• Near vicinity of an EVD patient

• Visiting a country with widespread EVD transmission in the past 21 days with no known exposures

• Adequate PPE when in direct contact with EVD case in Australia

Low risk

• Household member of EVD case

• Inadequate PPE plus close contact (being within 1 m of a EVD patient or within room for a prolonged period of time)

• Inadequate PPE and brief direct contact (e.g. shaking hands)

• Adequate PPE and direct contact if in an area of widespread EVD transmission

High risk

• Percutaneous (e.g. needle stick) or mucous membrane exposure to blood or body fluids of EVD patient

• Inadequate PPE and direct skin contact exposure to blood or body fluids of EVD patient

• Inadequate PPE and lab processing of body fluids of an EVD patient

• Inadequate PPE and direct contact with deceased EVD patient or patient with unknown cause of death in an EVD affected area