[1] Hebrew Univ Jerusalem, Hadassah Med Sch, Dept Parasitol, IL-91120 Jerusalem, Israel
[2] Hacettepe Univ, Gulhane Mil Med Acad, Div Med Parasitol, Ankara, Turkey
[3] Hacettepe Univ, Gulhane Mil Med Acad, Dept Undersea & Hyperbar Med, Ankara, Turkey
[4] Hacettepe Univ, Fac Sci, Dept Biol, Ecol Sect, Ankara, Turkey
[5] Refik Saydam Natl Hyg Inst, Communicable Dis Res Ctr, Parasitol Lab, Ankara, Turkey