1921
Volume 19, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract

A strain of trachoma isolated from a 3-year-old girl in Saudi Arabia initially showed antigenic characteristics of both types 1 and 2 by toxin-protection tests in mice and by fluorescent-antibody tests. Pure types 1 and 2 were separated from the parent strain in four experiments with limiting dilutions in eggs. We concluded that this strain was therefore a mixture, rather than a hybrid; there is no evidence from this laboratory nor in published reports that either phenomenon has been reported previously.

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/content/journals/10.4269/ajtmh.1970.19.842
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  • Accepted : 10 Dec 1969

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