Naslov
Irradiation to control infectivity of Toxoplasma gondii in murine brains and edible porcine tissues

Autori
Wikerhauser, Teodor ; Kutičić, Viktorija ; Ražem, Dušan ; Oršanić, Lidija ; Bešvir, Jože

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Use of irradiation to control infectivity of food-borne parasites

Urednik/ci
Joint FAO/IAEA division

Izdavač
International Atomic Energy Agency (IAEA)

Grad
Beč

Godina
1993

Raspon stranica
133-136

ISBN
92-0-103193-9

Ključne riječi
Toxoplasma, tissue cysts, oocysts, irradiation, x rays, gamma rays
(Toxoplasma, tissue cysts, oocysts, irradiation, x rays, gammarays)

Sažetak
The effect of irradiation on the infectivity of Toxoplasma gondii tissue cysts was studied. The tissue cysts was produced in brains of mice and in edible tissues of pigs by artificial infection with oocysts of one or more different isolates of T. gondii. The cyst-harbouring tissues were irradiated with x rays or gamma rays at doses ranging from 0, 3 to 1, 0 kGy (30-100 krad). The source of irradiation was either a Philips x ray machine or 60Co. The results were assessed by bioassays on cats and/or mice. Some slight differences in radiosensitivity of geographically different isolates were observed. For instance, a complete inactivation of a local isolate YU TG No. 3 was achived only after irradiation with 0, 7 kGy, whereas for the same effect on the infectivity of a US isolate ( ME-49) and Chinese one (NT), irradiation with 0, 4 and 0, 5 kGy, respectively, was sufficient. At sublethal doses, a sharp decrease of infectivity was observed.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA