An infectious disease is an illness caused by an infectious (blank) that can be transmitted from person to person.

A healthcare-acquired infection is an infection that a patient acquires while being treated at (blank) for a different ailment.

A side effect is an unintended, often problematic outcome ressulting from a(n) (blank).

An accident is any (blank) occurrence that has potentially negative consequences.

An adverse effect is an unintended (blank) effect of a medical treatment.​