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 - Softcover

Augustine, Donald L.

Softcover

ISBN 10: 0365655449 ISBN 13: 9780365655442

Verlag: Forgotten Books, 2018

Inhaltsangabe

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.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Details zur Ausgabe

• Verlag: Forgotten Books
• Erscheinungsdatum: 2018
• Sprache: Englisch
• ISBN 10: 0365655449
• ISBN 13: 9780365655442
• Einband: Taschenbuch
• Anzahl der Seiten: 286
• Kontakt zum Hersteller: Copytech (UK) Ltd, Trading as Printondemand-worldwide.com; gpsr@podww.com; ; 9 Culley Court; Orton Southgate; Peterborough; Cambridgeshire; PE2 6WA; Vereinigtes Königreich
• Verantwortliche Person: Easy Access System Europe Oü, 16879218; +358405003575; gpsr.requests@easproject.com; ; Mustamäe tee 50; Tallinn; 10621; Estland