Multiplicity Reactivation in Gamma Irradiated Influenza Viruses

@article{Gilker1967MultiplicityRI,
  title={Multiplicity Reactivation in Gamma Irradiated Influenza Viruses},
  author={J C Gilker and Vytautas Pavilanis and Roger Ghys},
  journal={Nature},
  year={1967},
  volume={214},
  pages={1235-1237}
}
MULTIPLICITY reactivation was first demonstrated in 1947 by Luria1, in bacteriophages irradiated by ultraviolet light. In 1951, Henle and Liu2 showed the same phenomenon in influenza viruses irradiated with ultraviolet light and grown in chick embryos. Their results were confirmed by Barry3 in 1961. In the same year Polley4, investigating the sterilizing potentialities of ionizing radiations, found that viral infectivity could be destroyed completely by high doses of cobalt-60 gamma rays while… 

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Evidence has been presented which strongly suggests that such prolonged periods of liberation are observed not only in deembryonated eggs but also in the intact chick embryo.

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