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Prevalence of group A β-hemolytic streptococci (Streptococcus pyogenes) by age group among children 5-13 years of age in the rural community of Maria Ignacia-Vela, Tandil, Argentina
| Group | Age (y) | nnc | nc (f/m) | %c |
|---|---|---|---|---|
| I | 5-7 | 40 | 7 (4/3) | 5.5 |
| II | 8-10 | 31 | 10 (4/6) | 7.9 |
| III | 11-13 | 38 | 1 (0/1) | 0.8 |
| Total (n = 127) | 109 | 18 | 14.2 |
nc, non-carrier; c, carrier; f, female; m, male.
