Table 2.
Nutritional status and blood meal sources of T. cruzi-infected and uninfected T. dimidiata
| Infected bugs No. observed/Total no. of bugs (%) |
Uninfected bugs No. observed/Total no. of bugs (%) |
Total No. observed/Total no. of bugs (%) |
|
|---|---|---|---|
| Unfed bugs | 39/64 (60.9) | 99/159 (62.3) | 138/223 (61.9) |
| Fed bugs | 25/64 (39.1) | 60/159 (37.7) | 85/223 (38.1) |
| Fed bugs with identified blood meal sources | 22/25 (88.0) | 45/60 (75.0) | 67/85 (78.8) |
| Blood meal sources | |||
| Human (Homo sapiens) | 9/22 (40.9) | 24/45 (53.3) | 33/67 (49.3) |
| Dog (Canis lupus) | 9/22 (40.9) | 6/45 (13.3) | 15/67 (22.4) |
| Cow (Bos sp.) | 1/22 (4.5) | 8/45 (17.) | 9/67 (13.4) |
| Dove (Zenaida/Columba sp.) | 1/22 (4.5) | 4/45 (8.9) | 5/67 (7.5) |
| Pig (Sus scrofa) | nd | 4/45 (8.9) | 4/67 (6.0) |
| Mouse (Mus musculus) | 1/22 (4.5) | 3/45 (6.7) | 4/67 (6.0) |
| Cat (Felis catus) | 1/22 (4.5) | 2/45 (4.4) | 3/67 (4.5) |
| Turkey (Meleagris gallopavo) | nd | 2/45 (4.4) | 2/67 (3.0) |
| Chicken (Gallus gallus) | nd | 1/45 (2.2) | 1/67 (1.5) |
| Bat (Artibeus lituratus) | 1/22 (4.5) | nd | 1/67 (1.5) |
| Peccary (Pecarí tajacu) | 1/22 (4.5) | nd | 1/67 (1.5) |
| Greater grison (Galictis vittata) | 1/22 (4.5) | nd | 1/67 (1.5) |
| Squirrel (Sciurus sp.) | nd | 1/45 (2.2) | 1/67 (1.5) |
| Frog (Rana sp.) | nd | 1/45 (2.2) | 1/67 (1.5) |
| Porcupine (Coendou sp.) | 1/22 (4.5) | nd | 1/67 (1.5) |
| Deer (Odocoileus virginianus) | 1/22 (4.5) | nd | 1/67 (1.5) |
Notes: The sums of the percentages of the different blood meal sources are greater than 100 because of multiple blood meal sources detected in various bugs. There was no significant difference in blood meal sources between infected and uninfected bugs (Fisher’s exact test, P = 0.051). There was no significant difference in nutritional status between infected and uninfected bugs (χ2 = 0.034, df = 1, P = 0.854)
Abbreviations: nd, not detected