Table 2. Prevalence of antibodies to Trypanosoma cruzi in persons in southern area of the State of Mexico*.
| Municipality | Village | Altitude (m) | No. screened | Seropositivity,† no. (%) |
||
|---|---|---|---|---|---|---|
| IgG positive | IgM positive‡ | IgG and IgM positive | ||||
| Tejupilco | El Carmen Ixtapan | 1,091 | 16 | 1 (6.3) | 3 (18.7) | 4 (25.0) |
| El Puerto del Salitre | 1,268 | 29 | 3 (10.3) | ND | 3 (10.3) | |
| Zacatepec | 1,311 | 200 | 2 (1.0) | 10 (5.0) | 11 (5.5) | |
| Rio Grande | 1,554 | 3 | 0 | ND | 0 | |
| Tenería | 1,730 | 45 | 0 | 3 (6.6) | 3 (6.6) | |
| Subtotal | 293 | 6 (2.05) | 16 (5.5) | 21 (7.1) | ||
| Temascaltepec | La Cominidad | 2,500 | 63 | 0 | 1 (1.6) | 1 (1.6) |
*IgG, immunoglobulin G. †p<0.001 for IgG, IgM, and IgG plus IgM seropositivity. ‡All IgM-seropositive persons were 4–13 y of age. ND, not determined.