title: Invasive group A streptococcal infections: second report of the enhanced surveillance scheme.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance; D013290:Streptococcal Infections / Q000453:epidemiology*; D013297:Streptococcus pyogenes; D006113:United Kingdom / Q000453:epidemiology