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. 1979 May;24(2):580–582. doi: 10.1128/iai.24.2.580-582.1979

Molecular characterization of plasmids from virulent and spontaneously occurring avirulent colonial variants of Shigella flexneri.

D J Kopecko, J Holcombe, S B Formal
PMCID: PMC414343  PMID: 378861

Abstract

Spontaneous transition of Shigella flexneri from T- to O-type colonies with concomitant loss of virulence dose not appear to be accompanied by a change in any of the four plasmic species found in the virulent parent.

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Selected References

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