Validation of an improved reference freeze-dried direct agglutination test for detecting leishmaniasis in the canine reservoir
2025

Improved Test for Detecting Canine Leishmaniasis

Sample size: 86 publication Evidence: high

Author Information

Author(s): el Harith Abdallah, Abass Elfadil, Martinkovic Franjo, Mansour Durria, Osman Hussam Ali

Primary Institution: Ahfad University for Women

Hypothesis

Can an improved freeze-dried direct agglutination test (FD-DAT) effectively detect canine leishmaniasis in endemic areas?

Conclusion

The improved FD-DAT shows highly concordant results with existing diagnostic methods and is more cost-effective and stable.

Supporting Evidence

  • The improved FD-DAT reduced test costs by 150%.
  • Expired test batches were revitalized to full validity.
  • The improved test maintained stability for ±12 months compared to the original's 48-hour shelf-life.
  • Results were highly concordant with IFAT and ELISA diagnostic methods.

Takeaway

Researchers made a better test to find a dog disease called leishmaniasis, which is cheaper and lasts longer than the old test.

Methodology

The study introduced citrate-saline formaldehyde as an anti-clumping agent and reduced the concentration of promastigotes for the FD-DAT.

Limitations

The study was limited by the availability of serum samples from Croatian dogs.

Participant Demographics

86 sera from both female and male dogs, including healthy Sudanese police dogs and dogs from a CanL endemic area in Croatia.

Statistical Information

P-Value

0.142

Statistical Significance

p=0.142

Digital Object Identifier (DOI)

10.1099/acmi.0.000890.v4

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