<microbiology> Hospital acquired infection: commonest are due to Staphylococcus aureus, Pseudomonas aeruginosa, E. Coli, Klebsiella pneumoniae, Serratia marcescens and Proteus mirabilis. ... (18 Nov 1997) ... 
an infection acquired during hospitalization.
an infection acquired in a hospital 
An infection acquired in the hospital environment.
An infection that is acquired as a result of hospitalization or treatment received in a hospital that was not present or incubating prior to being exposed to the hospital environment. Newborn babies can acquire the infection in the nursery or from the nursery workers if strict sanitation measures are not in place. Common infections usually affect.....