title: Streptococcus pyogenes pneumonia in residential homes: probable spread of infection from the staff.
mesh_terms: D000368:Aged; D004739:England; D006707:Homes for the Aged; D006801:Humans; D008875:Middle Aged; D009728:Nursing Assistants; D009735:Nursing Homes; D011014:Pneumonia / Q000209:etiology*; D013290:Streptococcal Infections / Q000635:transmission*; D013297:Streptococcus pyogenes; D014838:Volunteers