Table 1.
Trypanosoma cruzi infection among Panstrongylus megistus collected in a captive-primate unit at Brasília zoo, Federal District, Brazil: bug characteristics and results of optical microscopy and nested PCR
| Sex (adults) and stage (nymphs) | Optical microscopy | Nested PCR | ||
|---|---|---|---|---|
| Testeda | Positiveb | Tested | Positive | |
| Female | 12 | 2 | 13 | 11 |
| Male | 7 | 1 | 7 | 7 |
| Nymph II | 0 | - | 4 | 3 |
| Nymph III | 8 | 1 | 18 | 16 |
| Nymph V | 7 | 1 | 8 | 7 |
| Total | 34 | 5 | 50 | 44 |
a:Bugs that arrived dead and dry to the laboratory could not be tested by optical microscopy
b:Bugs with a positive optical microscopy were all also positive by nested PCR