Table 2. Results of laboratory tests for Leishmania infection in dogs collected from the streets of an endemic area of visceral leishmaniasis in Brazil.
LABORATORY | TEST AND RESULTS | NUMBER (%) | ||||
CATEGORY | CULTURE1 | ELISA | LST2 | PCR3 | ||
Positive: | 196 | (95.1) | ||||
P | P | P | P | 8 | (3.9) | |
P | P | NT | P | 12 | (5.8) | |
P | P | P | NT | 1 | (0.5) | |
P | P | N | N | 3 | (1.5) | |
P | P | N | NT | 3 | (1.5) | |
P | P | NT | NT | 3 | (1.5) | |
P | N | N | P | 2 | (1.0) | |
P | P | N | P | 44 | (21.4) | |
P | GZ | N | P | 1 | (0.5) | |
P | N | NT | P | 2 | (1.0) | |
P | GZ | NT | P | 1 | (0.5) | |
P | GZ | NT | NT | 1 | (0.5) | |
N | P | N | N | 11 | (5.3) | |
N | P | N | ND | 1 | (0.5) | |
N | P | NT | N | 2 | (1.0) | |
N | P | P | N | 2 | (1.0) | |
N | P | P | P | 3 | (1.5) | |
N | P | N | P | 41 | (19.9) | |
N | P | NT | P | 21 | (10.2) | |
N | P | NT | NT | 6 | (2.9) | |
N | N | P | P | 2 | (1.0) | |
N | GZ | P | P | 1 | (0.5) | |
N | N | N | P | 18 | (8.7) | |
N | GZ | N | P | 1 | (0.5) | |
N | N | NT | P | 6 | (2.9) | |
Negative: | 4 | (1.9) | ||||
N | N | N | N | 4 | (1.9) | |
Undefined: | 3 | (1.5) | ||||
N | N | NT | N | 1 | (0.5) | |
N | N | NT | NT | 2 | (1.0) | |
TOTAL (%) | 206 | (100) | ||||
Positive4 | 81/206(39) | 161/206(78) | 17/146(12) | 166/189(88) | 199/203 | (98) |
Culture of spleen aspirate;
leishmanin skin test;
PCR of spleen aspirate;
The denominator varies according with the number of animals subjected to the test. N = negative test; P = positive test; GZ = dubious test result; NT = not tested.