Colicin types of Shigella sonnei in relation to antibiotic resistance.


Colicin typing of 436 strains of Shigella sonnei isolated in Dallas during a 10-year period was performed to determine whether resistance to ampicillin was associated with a single strain or was widespread among all S. sonnei types. One hundred ninety-three strains collected during a period of eight and one-half years when ampicillin resistance was 1.6… (More)


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