Seroprevalence rate, as a percentage, reported in a hospital based South Yorkshire7 series and in the present study. The absolute values are given in brackets. Both studies used the Eiken Toxoreagent latex agglutination test for analysis. The children in the present study were aged 4 to 18 years
| Age (years) | South Yorkshire 1988–90 (hospital study) | Ireland 1992–3 (community study) |
|---|---|---|
| 0–5 | 3.3 (3/92) | 6.3 (6/96) |
| 6–10 | 7.4 (4/81) | 11.3 (70/622) |
| 11–15 | 10.5 (8/76) | 15.2 (77/506) |
| 16–20 | 10.6 (10/94) | 19.2 (10/52) |