Körting W, Kruse P, Steinhagen D
Fachgebiet Fischkrankheiten und Fischhaltung, Tierärztliche Hochschule, Hannover, FRG.
Angew Parasitol. 1989 Aug;30(3):185-8.
The development of "Csaba cells" in the blood of experimentally infected common carp showed the various different stages as previously described in the literature. Most frequent were stage 1 and later stage 5 cells. 3 subsequent passages were successful.