Volume 32, Number 1—January 2026
Dispatch
Presence or Emergence of Canine Leishmaniasis, Malawi
Table
PCR and ELISA results for detecting Leishmania spp. in indigenous dogs from the Mchinji, Nkhotakota, and Zomba districts in a study of canine leishmaniasis, Malawi*
| District | qPCR-positive† | SSU–cPCR-positive | ITS2–cPCR-positive | LdSLA-seropositive | rK39r4-seropositive | PCR-positive‡ | Serologic test–positive§ | Both PCR and serologic test–positive |
|---|---|---|---|---|---|---|---|---|
| Mchinji | 12/157 (7.6) | 17/157 (10.8) | 13/157 (8.3) | 0/140 (0) | 1/140 (0.7) | 17/157 (10.8) | 1/140 (0.7) | 0/140 (0) |
| Nkhotakota | 5/100 (5.0) | 5/100 (5.0) | 5/100 (5.0) | 0/98 (0) | 0/98 (0) | 5/100 (5.0) | 0/98 (0) | 0/98 (0) |
| Zomba | 9/300 (3.0) | 22/300 (7.3) | 17/300 (5.7) | 16/300 (5.3) | 15/300 (5.0) | 23/300 (7.7) | 21/300 (7.0) | 10/300 (3.3) |
| Total | 26/557 (4.7) | 44/557 (7.9) | 35/557 (6.3) | 16/538 (3.0) | 16/538 (3.0) | 45/557 (8.4) | 22/538 (4.1) | 10/538 (1.9) |
*All values are no. (%). cPCR, conventional PCR; ITS2, internal transcribed spacer 2; LdSLA, Leishmania donovani soluble lysate antigen from cultured promastigotes; qPCR, real-time PCR; rK39r4, recombinant rK39r4 antigen; SSU, small subunit. †Defined as cycle threshold value <35. ‡Defined as the count of the sample that showed positives in any of the 3 tests: qPCR, SSU-cPCR, or ITS2-cPCR. §Defined as the count of the sample that showed positives in LdSLA, rK39r4 antigen, or both.
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Page updated: January 29, 2026
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