title: Hospitals should do the sick no harm. 2. Why are bacteria harmful?
mesh_terms: D000368:Aged; D001424:Bacterial Infections / Q000382:microbiology*; D003016:Clostridium perfringens / Q000472:pathogenicity; D003428:Cross Infection / Q000382:microbiology*; D005517:Foodborne Diseases / Q000382:microbiology*; D006801:Humans; D008297:Male; D011468:Prostatectomy; D013530:Surgical Wound Infection / Q000382:microbiology