1921
Volume 14, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

A gram-negative, bipolar-staining rod, isolated from a snowshoe hare in Alaska, was identified as . This identification was of particular importance since plague is under international quarantine and has never been reported from Alaska. Subsequent work has established that the organism is a strain of type I B which possesses an antigenic substance very closely related to the Fraction I antigen of the plague bacterium. The presence of this antigen resulted in the fluorescent-antibody test yielding a false-positive finding, and has raised the question as to the current emphasis in differentiating between these two bacterial species on the basis of the presence or absence of Fraction I. The determination of must include other testing procedures, such as the isolation of the organism or the demonstration of its presence in tissues of test animals.

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/content/journals/10.4269/ajtmh.1965.14.424
1965-05-01
2017-11-18
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