Table 1.
Sampling distribution and leptospirosis seroprevalence in the islands of American Samoa
| Island | Total population 2000 est. (30) | Number of households sampled | Number of people sampled | Number of positive MATs | Seroprevalence of most common serovars (%) | Overall seroprevalence (%) | ||
|---|---|---|---|---|---|---|---|---|
| Hebdomadis | LT 751 | LT 1163 | ||||||
| Tutuila | 55,876 | 592 | 721 | 117 | 10 | 4.3 | 3.5 | 16.2 |
| Aunu’u | 476 | 12 | 16 | 0 | 0 | 0 | 0 | 0 |
| Ta’u | 380 | 35 | 45 | 6 | 0 | 11.1 | 2.2 | 13.3 |
| Ofu | 289 | 9 | 11 | 1 | 0 | 9.1 | 0 | 9.1 |
| Olosega | 216 | 11 | 14 | 1 | 0 | 7.1 | 0 | 7.1 |
| Total | 57,291 | 659 | 807 | 125 | 8.9 | 4.7 | 3.2 | 15.5 |
MAT = microscopic agglutination tests.