Table 1.
Descriptive summary of the frequency of feeding and defecation events during trials, which consisted of 60 min with guinea pigs and triatomines together followed by 60 min of insect-only observation.
| Species | Infection Group | No. of Insects | No. Fed (%) | No. Defecated (%) a | No. Fed + Defecated (%) b | % Fed Insects That Defecated in 120 min |
|---|---|---|---|---|---|---|
| T. gerstaeckeri | Control | 26 | 17 (65) | 15 (58) | 13 (50) | 76 |
| TcI | 21 | 14 (67) | 7 (33) | 7 (33) | 50 | |
| TcIV | 17 | 10 (58) | 11 (65) | 8 (47) | 80 | |
| T. sanguisuga | Control | 16 | 6 (38) | 5 (31) | 3 (19) | 50 |
| TcI | 11 | 2 (17) | 3 (25) | 2 (17) | 100 | |
| R. prolixus | Control | 21 | 9 (47) | 8 (42) | 8 (42) | 89 |
| TcI | 19 | 0 (0) | 2 (11) | 0 (0) | 0 | |
| TcIV | 17 | 1 (6) | 5 (29) | 1 (6) | 100 | |
| Overall | 148 | 59 (40) | 56 (38) | 42 (28) | 71 | |
a This is the number of insects that defecated at least once in the 2 h period, including insects that defecated before feeding or did not feed at all. b This number represents insects that fed on a guinea pig either with simultaneous defecation or any defecation following feeding.