LEYSHMANIYA (Leishmania), yak nav mavjudoti bemoriovar. Dar odam va baze jonvaron (mas., sag) se namudi L. paraziti mekunad (L. donovani, L. tropica, L. brasiliensis). Intiqoldihandai on hasharoti khunmak, mas., khomushaku kurpashshaho meboshand. L. donovani angezandai bemorii vaznin – leyshmanioz buda, dar Hinduston, Hitoy, Sumatra pahn gashtaast. L.-ho nokshakl buda, andozaashon 2 – 4 mkm meboshad. L.-ho dar Osiyoi Markazi niz duchor meoyand.