title: Severe group A streptococcal infection.
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D010612:Pharyngitis / Q000382:microbiology*; D013290:Streptococcal Infections / Q000503:physiopathology*; D013297:Streptococcus pyogenes / Q000302:isolation & purification