Table 1 Oral infection of mice with metacyclic forms of T. cruzi strainsa
T. cruzi strain (origin) | Mouse | Amastigote nests (number of tissue sections) | ||
|---|---|---|---|---|
Stomach (Day 4) | Stomach (Day 30) | Heart (Day 30) | ||
28 (Brazil Amazon) | 1 | 0 (20) | 0 (20) | 0 (20) |
2 | 0 (20) | 60 (20) | 0 (21) | |
3 | 0 (20) | 285 (20) | 0 (20) | |
4 | 0 (20) | 11 (18) | 0 (23) | |
5 | 0 (20) | NDb | 0 (20) | |
515 (Venezuela) | 1 | 0 (21) | 0 (24) | 0 (20) |
2 | 0 (19) | 0 (13) | 0 (25) | |
3 | 0 (20) | 0 (21) | 0 (23) | |
4 | 0 (20) | 45 (11) | 0 (21) | |
5 | 0 (20) | 5 (21) | 0 (24) | |
588 (Guatemala) | 1 | 0 (09) | 31 (19) | 10 (21) |
2 | 0 (12) | 17 (18) | 0 (20) | |
3 | 0 (09) | 6 (20) | 3 (15) | |
4 | 0 (12) | 87 (19) | 0 (19) | |
5 | 0 (16) | 990 (20) | 0 (16) | |
1522 (Brazil Northeast) | 1 | 0 (16) | 0 (17) | 0 (20) |
2 | 0 (19) | 0 (15) | 4 (20) | |
3 | 0 (20) | 0 (17) | 0 (20) | |
4 | 0 (21) | 0 (20) | 6 (20) | |
5 | 0 (21) | 0 (16) | 4 (18) | |
1434 (Brazil Amazon) | 1 | 5 (40) | 0 (18) | 0 (20) |
2 | 3 (40) | 0 (24) | 0 (20) | |
3 | 0 (36) | 0 (20) | 0 (20) | |
4 | 0 (35) | 0 (20) | 0 (21) | |
5 | 5 (40) | 0 (20) | 0 (21) | |