| Country | Age group (years) | HAV seroprevalence |
| United Kingdom (Das et al., 2000) | 5 - 9 | 10.5 |
| 10 - 14 | 13.9 | |
| 15 - 19 | 19.6 | |
| Italy (Fix et al., 2002) | 3 - 5 | 2.3 |
| 17 - 19 | 16.3 | |
| India (Baudin et al., 1971) | 6 - 10 | 62.2 |
| 11 - 15 | 68.5 | |
| Over 16 | 80.8 | |
| Current study (Kenya) Low SES High SES | 5 - 9 | 61.8 |
| 10 - 14 | 77.6 | |
| 5 - 9 | 14.6 | |
| 10 - 14 | 38.9 |