Studies on the use of cobalt-60 irradiation to control infectivity of Toxoplasma gondii cysts.

@article{Song1991StudiesOT,
  title={Studies on the use of cobalt-60 irradiation to control infectivity of Toxoplasma gondii cysts.},
  author={Chengcun Song and Xiao Zi Yuan and Lili. Shen and Xiaoni Gan and John Zijiang Ding and Yi-shi Duan},
  journal={The Southeast Asian journal of tropical medicine and public health},
  year={1991},
  volume={22 Suppl},
  pages={
          115-9
        }
}
Mouse brains harboring the Chinese NT strain of Toxoplasma gondii cysts were homogenized with normal saline and irradiated with cobalt-60 gamma rays at various doses. The homogenate was introduced intraperitoneally into NIH mice or per os into kittens. Loss of infectivity was confirmed according to the following criteria: no cyst found in mouse brain impression smears on the 50th day after inoculation; no oocyst found in feces of kittens 3-15 days after inoculation; subinoculation in mice and a… CONTINUE READING

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