Pedzisa mutsara unotevera: Hazvizivikanwi kuti ndiani akatanga kuwana mhuka. David Douglas Cunningham, Chiremba Mukuru wehondo yeIndia yeBritain, angave akazviona muna 1885 pasina kukwanisa kuzvibatanidza nehosha yacho. Peter Borovsky, chiremba wechiuto wokuRussia aishanda muTashkent, akaongorora kuti "chirwere chokuMabvazuva" chinokonzerwa nei, uye muna 1898 akabudisa tsanangudzo yokutanga yakarurama yezvinokonzera chirwere chacho, akarondedzera nenzira yakarurama ukama hwechipembenene chacho nemasero omuridzi wacho uye akachinongedzera nenzira yakarurama kuprotozoa. Zvisinei, nemhaka yokuti zvaakawana zvakabudiswa mumutauro wokuRussia mupepanhau rakanga risinganyanyi kuparadzirwa, zvaakawana hazvina kuzivikanwa munyika yose panguva yaakanga achiri mupenyu. Muna 1901, Leishman akaziva zvimwe zvinhu zvipenyu muzvitsva zvakatorwa muura hwomurwere akanga afa ne"dum-dum fever" (Dum Dum inzvimbo iri pedyo neCalcutta) uye akafunga kuti yaiva trypanosomes, yakawanikwa kokutanga muIndia. Mwedzi mishomanene gare gare, Kaputeni Charles Donovan (1863<unk>1951) akasimbisa kuwanwa kwezvakazozivikanwa semiviri yaLeishman-Donovan muzvidimbu zvakatorwa kuvanhu muMadras kumaodzanyemba kweIndia. Asi Ronald Ross ndiye akataura kuti miviri yaLeishman-Donovan yaiva mumatanho epasi pemasero eutachiona hutsva, hwaakatumidza kuti "Leishmania donovani". Kubatanidzwa nechirwere che "kala-azar" kwakatanga kutaurwa naCharles Donovan, uye kwakaratidzwa zvakajeka nokuwanikwa kwaCharles Bentley kwe"L. donovani" muvarwere vane "kala-azar". Kuparadzirwa kwoutachiona nehonye kwakarangarirwa naLionel Napier naErnest Struthers paChikoro cheMishonga Inonaya Mvura muCalcutta uye gare gare kwakaratidzwa navamwe vake. Chirwere chacho chakava chinetso chikuru ku
Mauto eAllied airwa muSicily muHondo Yenyika II; kutsvakurudza kwakaitwa naLeonard Goodwin panguva iyoyo kwakaratidza kuti pentostam yaiva mushonga unoshanda.