hospital infection/ ˈhɒspᵻtəl ɪnˈfɛkʃən / noun
an infection that someone gets while staying in a hospital, for example from other patients or staff or from the environment:
Hospital infections such as MRSA are now on the decline after several high-profile hygiene campaigns.
Hospital infections are also called hospital-acquired infections or HAIs:
Many HAIs are completely preventable.