World Health Organization : Technical Report Series, No. 277: Soil ; Transmitted Helminths

By P. Beaver

Book Id: WPLBN0000104291
Format Type: PDF eBook
File Size: 3.6 MB
Reproduction Date: 2005

Title:	World Health Organization : Technical Report Series, No. 277: Soil ; Transmitted Helminths
Author:	P. Beaver
Volume:
Language:	English
Subject:	Health., Public health, Wellness programs
Collections:	Medical Library Collection, World Health Collection
Historic Publication Date:
Publisher:	World Health Organization


Citation APA MLA Chicago Beaver, P. (n.d.). World Health Organization : Technical Report Series, No. 277. Retrieved from http://gutenberg.cc/

Description
Medical Reference Publication

Excerpt
SOIL-TRANSMITTED HELMINTHS Report of a WHO Expert Committee on Helminthiases A WHO Expert Committee on Helminthiases was convened in Rio de Janeiro from 26 to 31 August 1963 to review the problems raised by soiltransmitted helminths. Dr M. A. Vaucel was elected Chairman, Dr 5. Rodrigues da Silva Vice-Chairman, and Dr P. Beaver Rapporteur.

Table of Contents
CONTENTS Page Introduction : The relative public health importance of all helminthic infections . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 . Geographical distribution . . . . . . . . . . . . . . . . . . . 8 1.1 Prevalence of infection . . . . . . . . . . . . . . . . . . 8 1.2 Intensity of infection . . . . . . . . . . . . . . . . . . . 13 1.3 Morbidity and mortality . . . . . . . . . . . . . . . . . 15 2 . Factors influencing transmission . . . . . . . . . . . . . . . . 17 2.1 Biology of the parasite in relation to transmissioil . . . . . . . 17 2.2 Environmental factors.related to the free-li~rings tage . . . . 19 2.3 Habits and practices of the host . . . . . . . . . . . . . . 23 3 . Pathogenesis . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.1 Disease processes caused by adult parasites . . . . . . . . . 26 3.2 Disease processes caused by larva1 stages . . . . . . . . . . 28 3.3 Effects of parasite secretions and excretions on the host . . . 33 4 . Clinical manifestations . . . . . . . . . . . . . . . . . . . . 34 4.1 By disease . . . . . . . . . . . . . . . . . . . . . . . . 34 4.2 Interrelationship of host nutrition and clinico-pathological rnanifestations of parasitism . . . . . . . . . . . . . . . . . . 42 5 . Iiiterrelations between physiology and biochemistry of parasite and host 43 5.1 Growth requirements of parasites . . . . . . . . . . . . . . 43 5.2 Interrelations between host and parasite nutrition . . . . . . 44 6 . Immunity . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.1 Natural resistance ; host-parasite specificity . . . . . . . . . 45 6.2 Age resistance . . . . . . . . . . . . . . . . . . . . . . 46 6.3 Acquired resistance . . . . . . . . . . . . . . . . . . . . 46 7 . Techniques and procedures of study . . . . . . . . . . . . . . 50 7.1 Parasitological techniques . . . . . . . . . . . . . . . . . 50 7.2 Biological techniques . . . . . . . . . . . . . . . . . . . 53 7.3 Morbidity measurement . . . . . . . . . . . . . . . . . . 54 8 . Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 8.1 Environmental control and chemical control of free-living stages . 56 8.2 Clinical chemotherapy . . . . . . . . . . . . . . . . . . . 62 8.3 Artificial immunization . . . . . . . . . . . . . . . . . . 65 9 . Recommendations for research . . . . . . . . . . . . . . . . . 66 10 . Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 70