1921
Volume s1-30, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

  • 1.  The results demonstrate that mice infected by the bite of develop a sufficient concentration of virus in the blood to produce a transmissible infection in mosquitoes which feed upon them.
  • 2.  Mice 3–5 days old when infected developed blood titers which ranged from 3.6 to 5.2 while those 7–12 days old had titers of 2.8–3.8. The mosquitoes transmitted the virus when infected by blood having titers of 2.8, 3.2, 4.5, and 5.2, respectively. The titer is expressed as the exponent of the reciprocal of the LD dilution.

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/content/journals/10.4269/ajtmh.1950.s1-30.683
1950-09-01
2017-09-20
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