Table 2.
Comparative efficacy percentage of microscopy, Ag ELISA, and PCR in detecting Dirofilaria immitis infection in dogs.
| Detection methods | |||||
|---|---|---|---|---|---|
| Dog category | Number of blood samples tested | Microscopy (Knott's technique) | Ag ELISA (SNAP 4Dx test) |
PCR | |
| Numbers of positive (%) | Numbers of positive (%) | Specific primer for D. immitis (%) | Panfilarial primers (%) | ||
| Stray | 413 | 69 (16.70%) | 107 (25.90%) | 88 (21.30%) | 92 (88 + 4*) (22.27%) |
| Pet | 266 | 16 (6.01%) | 24 (9.02%) | 17 (6.39%) | 17 (6.39%) |
| Working | 103 | 4 (3.88%) | 10 (9.70%) | 4 (3.88%) | 4 (3.88%) |
|
| |||||
| Grand total | 782 | 89 (11.38%) | 141 (18.03%) | 109 (13.93%) | 113 (14.45%) |
* Dirofilaria repens.