1921
Volume 23, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract

The course of a self-induced infection with about 100 larvae was followed by twice-weekly blood and stool examinations. After a small initial increase, no further change in eosinophil counts occurred until the 33rd week of infection when they began to increase sharply. Seven weeks later, eggs were first observed in stools. Thus, in this infection, the prepatent period was five times the expected. It is suggested that a strain of exists which either 1) has an inherent, abnormally long prepatent period or 2) has a prepatent period which is susceptible to change depending upon the environmental conditions experienced by the free-living larvae. In either case, the third stage larvae probably enter a hypobiotic state within the host which lasts for about 8 months.

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/content/journals/10.4269/ajtmh.1974.23.895
1974-09-01
2017-09-22
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http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.1974.23.895
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  • Accepted : 16 Feb 1974

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