Studies on the Activities of the Infective Larvae of Necator Americanus: Dissertation Submitted to the Director of the School of Hygiene and Public ... Requirements for the Degree of Doctor of Scie - Hardcover
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Excerpt from Studies on the Activities of the Infective Larvae of Necator Americanus: Dissertation Submitted to the Director of the School of Hygiene and Public Health of the Johns Hopkins University in Conformity With the Requirements for the Degree of Doctor of Science in Hygiene
These studies have shown that many of our former conceptions concerning the biology of mature hookworm larvae are erroneous and that a revision of these ideas is necessary. The length of life of mature larvae was found to be much more limited than was formerly supposed and under tropical condi tions, an almost complete dying out occurred in less than two months. It was also found that mature larvae become unsheathed in the soil, a phenomenon which was supposed to occur only at the time of penetration of the skin of the host. This casting of the sheath was found to be significant in that it immediately renders the larva more susceptible to adverse conditions and functions in reducing soil infestation. It was also shown that the infective larvae do not migrate from places of development.
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Studies on the Activities of the Infective Larvae of Necator Americanus Dissertation Submitted to the Director of the School of Hygiene and Public Requirements for the Degree of Doctor of Scie
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