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  • Title: Mouse foot-pad inoculation as an aid to the isolation of Leishmania spp. from patients.
    Author: Shatry AM, Oster CN, Mebrahtu YB, Perkins PV, Hendricks LD.
    Journal: Trans R Soc Trop Med Hyg; 1988; 82(5):701-3. PubMed ID: 3252588.
    Abstract:
    Portions of splenic or subcutaneous saline aspirates from suspected visceral or cutaneous leishmaniasis patients were inoculated into NNN media with an overlay of Schneider's medium or Schneider's medium alone for routine parasitological diagnosis. The remaining portions of the aspirates were used for preparing Giemsa-stained smears and for subcutaneous inoculation into hind foot-pads of Balb/c mice. Saline aspirates obtained from the foot-pads 2-14 d after inoculation were inoculated into Schneider's medium and examined for promastigotes. Parasite isolation was achieved from 90% of confirmed leishmaniasis patients by either culture method alone. Mouse foot-pad aspiration demonstrated parasites in 95% of all patients, and in over 80% of the confirmed cases of leishmaniasis. Combined culturing and aspirate smear examination was more efficient than foot-pad inoculation alone for the demonstration of leishmanial infection. Foot-pad aspiration does not entail killing animals and was sensitive for parasite isolation; it may be a useful short-term adjunct to existing parasite isolation methods, especially under field conditions where the risks of culture contamination may be high.
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