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Tuesday, July 28, 2020 | History

4 edition of Study group on the ecology of intermediate snail hosts of bilharziasis found in the catalog.

Study group on the ecology of intermediate snail hosts of bilharziasis

World Health Organization

Study group on the ecology of intermediate snail hosts of bilharziasis

report.

by World Health Organization

  • 196 Want to read
  • 15 Currently reading

Published in Geneva .
Written in English

    Subjects:
  • Schistosomiasis.,
  • Snails.,
  • Freshwater biology.

  • Edition Notes

    1

    SeriesTechnical report series (World Health Organization) -- no. 120
    Classifications
    LC ClassificationsRA"644"S3"W67"1957
    The Physical Object
    Pagination38 p. :
    Number of Pages38
    ID Numbers
    Open LibraryOL20768256M
    LC Control Number57059099

    The freshwater molluscs in Guntur district (India) are represented by 24 species. The genus Scaphula is first recorded from the river Krishna. It is represented here by a species new to science. The distribution and occurrence of the mollusca is related to stagnant or flowing nature, depth and surface area, aquatic vegetation and dissolved calcium in the water bodies :// Geology and geomorphology in relation to the distribution of snail intermediate hosts of bilharzia in South Africa Article (PDF Available) in Pathogens and Global Health 70(2) July

      Schistosomiasis is a snail-borne disease endemic in sub-Saharan Africa transmitted by freshwater snails. The distribution of schistosomiasis coincides with that of the intermediate hosts as determined by climatic and environmental factors. The aim of this paper was to model the spatial and seasonal distribution of suitable habitats for Bulinus globosus and Biomphalaria pfeifferi snail species In this chapter a review of research published since on the biology of the snail intermediate hosts of trematode parasites of medical importance in Southeast Asia, and related taxa is ://

    The present study aims to determine snail distribution in relation to habitat factors, and furthermore to evaluate the effect on B. truncatus of repeated cleaning and vegetation removal. The contribution of local involvement in snail control to the schistosomiasis elimination programme launched by the Ministry of Health in is :// Abstract. This chapter reviews the environmental and ecological factors that influence the local distribution of Biomphalaria spp. in Africa and South America, including temperature, light, water chemistry and conductivity, depth and types of water body and aquatic vegetation. The role of these intermediate snail hosts in the transmission of Schistosoma mansoni is reviewed, including aspects


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Study group on the ecology of intermediate snail hosts of bilharziasis by World Health Organization Download PDF EPUB FB2

This report deals concisely with the distribution of the intermediate hosts of schistosomes in relation to hydrogeology, the physical, chemical and biological factors con ditioning their habitats and the seasonal and climatic factors influencing their life-cycle, the application of our present knowledge of oecology to bilharaasis control measures (including molluscicides, sanitation measures, Get this from a library.

Study group on the ecology of intermediate snail hosts of bilharziasis; report. [World Health Organization.] 1. Author(s): Gaud,Jean; World Health Organization. Study Group on the Ecology of Intermediate Snail Hosts of Bilharziasis, Title(s): Seasonal and climatic factors influencing the reproductive cycle of snail vectors of bilharziasis in North Africa/ by Dr.

Gaud. Country of Publication: Switzerland Publisher: [Geneva, Switzerland]: World Health Organization, Study Group on the Ecology of Study group on the ecology of intermediate snail hosts of bilharziasis  Executive Board, 19 (‎ World Health Organization, )‎ Show Statistical Information   Study area.

The study was carried out in Niakhar (14°30 N, 16°30 W), a rural area located in the Fatick region (Sine-Saloum), in central Senegal, km east of Dakar, the capital of Senegal, in West Africa (Fig. 1).Niakhar is situated in a Sahelian-Sudanese climatic domain, with temperatures ranging from 24 °C in December to 30 °C in June [].

Author(s): Watson,J M(John Matheson),; World Health Organization. Study Group on the Ecology of Intermediate Snail Hosts of Bilharziasis, Title(s): The present status of knowledge regarding the ecology and distribution of bulinus truncatus in the Middle East/ by Dr J.M.

:// Study Group on the Ecology of Intermediate Snail Hosts of Bilharziasis, Title(s): The snails in the collection of the WHO Snail Identification Centre, Salisbury, Southern Rhodesia/ by William Alves. Country of Publication: Switzerland Publisher: [Geneva, Switzerland]: World Health Organization, Study Group on the Ecology of Intermediate Snail Study Group on the Ecology of Intermediate Snail Hosts of Bilharziasis, Title(s): The molluscan host/ by N.G.

Hairston. Country of Publication: Switzerland Publisher: [Geneva]: World Health Organization, Study Group on the Ecology of the Intermediate Snail Hosts of Bilharziasis, 28 August Description: 68, 7 pages: ://   1. Notes on the Ecology of the Planorbid Intermediate Hosts 1 2.

Basic Malacological Concepts i 4 3. Groups of Freshwater Snails of the Neotropics 17 4. Key to Neotropical Biomphalaria Species 30 5. Synopsis of the Biomphalaria Species 33 APPENDIX I. Collection, Preservation, and Storage of Snails 89 APPENDIX ://?sequence=1&isAllowed=y.

The literature on the ecology of the snail vectors of mansonian schistosomiasis can be broadly subdivided into three categories, linked to three distinct historical periods: 1) basic ecological research, which started with the pioneering study by Lutz () and picked up steam in Brazil from the s onwards; 2) the relatively recent ?script=sci_arttext&pid=SX The thiarid snail Melanoides tuberculatus Müller, (sin = Melanoides tuberculata) is now distributed in all Neotropical was reported for the first time in Brazil in (Vaz et al.

Several biological control programmes using M. tuberculatus as competitor of the snail intermediate hosts of Schistosoma mansoni (Sambon ) have been performed in the Caribbean area ?script=sci_arttext&pid=S   ALCOM's main contribution to the mitigation of schistosomiasis is consequently to disseminate information about pond management with respect to the snail's intermediate host.

REFERENCES. Anonymous. Study group on the ecology of intermediate snail hosts of bilharziasis. Invasive plants may change ecologic conditions to contribute to transmission of human diseases. This study examined whether water hyacinth (Eichhornia crassipes) had an effect on the snails Biomphalaria sudanica and B.

choanomphala, hosts of the disease organism Schistosoma mansoni in Lake Victoria, East Africa. Eight m2 enclosures were established in shallow shoreline areas and were paired Study Group on the Ecology of Intermediate Snail Hosts of Bilharziasis, Title(s): Irrigation network installations and prophylaxis of urinary bilharziasis/ by François-Georges Marill.

Country of Publication: Switzerland Publisher: [Geneva, Switzerland]: World Health Organization, 8 August Majority of the snail intermediate hosts for human schistosomiasis belong to the three genera Biomphalaria, Bulinus and Oncomelania (Agi, and Okafor, ;Badger and Oyerinde, ).

The reason for wider distribution of S. haematobium than S. mansoni may be due to the ecology and distribution of their snail intermediate host (Madsen et al. ; Madsen, ) which indirectly PIMENTEL D, WHITE PC, ILDEFONSO V. Vagility of Australorbis glabratus, the snail intermediate host of Schistosoma mansoni in Puerto Rico.

Am J Trop Med Hyg. May; 6 (3)– RITCHIE LS. The biology and control of the amphibious snails that serve as intermediate hosts for Schistosoma japonicum. Am J Trop Med Hyg. May; 4 (3)– (). Study group on the ecology of intermediate snail hosts of bilharziasis.

Surveillance of arthropod vector-borne infectious diseases using remote sensing techniques: a review. PLoS (). Sustainable schistosomiasis control— the way forward. Bulinus africanus snail species were also encountered in three habitat types, namely stream side pools, puddles, and dams, though they represented only 10% of the snail population recorded in the study.

Ceratophallu spp. which are non-vector snails were the least occurring, accounting for only % of the total snail population within the Zakaria has continued his study of the oecoiogy of the Abdul-Latif al-Farras Canal north of Baghdad. This canal is supplied from the Tigris, about 6 km.

south-west of Tarmiyah and was dug in Data are given on its velocity, depth, width, nature of its bed, seasonal changes in temperature of the water, flora and fauna, and especially in relation to the molluscan ://.

Specifically, this study demonstrates how the biogeography of snail intermediate hosts and human ecology interact to influence the geographic distribution of schistosomiasis in a river basin rapidly being developed for irrigated agriculture.

The creation of snail habitats has resulted in the rapid spread of Biomphalaria pfeifferi in some ://Results. B. senegalensis and B. umbilicatus were the only snails intermediate hosts collected in the Niakhar study area.B.

senegalensis is found in all the 17 sampling sites while B. umbilicatus was only found in one site out of the many surveyed. The total number of B. senegalensis collected in and was and respectively.

A total of and B. senegalensis were tested   Bull. Org. mond. Sante19, Bull. WidHith Org. THEECOLOGYOFVECTORSNAIL HABITATS ANDMOSQUITOBREEDING-PLACES The Experimental approach to basic problems R. C. MUIRHEAD-THOMSON, D. Sc. Entomologist, WHOMalaria Assessment Team, Salisbury, Southern Rhodesia SYNOPSIS The ecology of freshwater snails-in particular those which act as intermediate hosts ofbilharziasis ?sequence=1&is.