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Occurrence of Soil-transmitted Helminths in Developing Country Women<br />

Joshi, S.D. (1), P.R. Chaudhary (2) & K. Panday (3)<br />

(1) Public Health Office, Kailali,Nepal; (3) Nepal Medical College and Teaching Hospital,<br />

Kathmandu, NEPAL; (2) All India Institute of Medical Sciences, New Delhi, India.<br />

Objective: To find the occurrence pattern and prevalence of the soil transmitted helminths in<br />

women of child-bearing age group in developing country Nepal.<br />

Methods and Materials: The study was conducted in 7 districts at an altitude of 2100 metres<br />

above sea level. Faecal samples of 2478 women of child-bearing age (15 to 45 years) were<br />

taken randomly and examined for the ova of soil transmitted helianthus during year 2007.<br />

The data were analysed and edited by EPI info program.<br />

Results: The occurrence pattern was 53.0%, 20.0% and 2.7% for Hookworms, Ascaries<br />

lumbricoids and Trichuris Trichuria respectively. Both Ascaries and Hookworm prevalence<br />

rates noticeably increased with increasing age, with the highest infection rate between the<br />

ages of 36 - 45 years while trichuris infection was highest in women of 15-25 years of age.<br />

Conclusion: Due to the lack of medicine and healthcare facilities in remote areas, there is a<br />

high prevalence of hookworm and Ascaries in women of child-bearing age and intervention<br />

is needed according to WHO guidelines. The government should make special policies and<br />

programs for health care access in these areas.<br />

Role of Soil Nematodes as a Bioindicator of Soil Health and the Influence of<br />

Human Interventions on their Composition<br />

Massawe, C. (1), P. Jowah (1), Z. Sibanda, (2) & D. Hunt (3)<br />

(1) University of Zimbabwe, Department of Crop Science, P O Box MP 167 Harare, Zimbabwe; (2) Goldengro<br />

(pvt) Limited, P O Box MP 1306, Mount Pleasant, Harare, Zimbabwe; (3) CABI Europe – UK, Bakeham Lane,<br />

Egham, Surrey, TW20 9TY, UK.<br />

A survey to characterize nematode communities in different land management systems in<br />

Zimbabwe and to explore the potential of using nematode communities indices as<br />

bioindicators to infer soil process and quality was carried out during 2007 in Zimbabwe. Soil<br />

samples were collected at random at two depths, i.e. 5 – 15cm and 15 – 30cm from land<br />

under continuous maize cropping and at the Botanical Reserve Gardens (uncropped). The<br />

results from continuous maize fields showed reduction in diversity of plant parasitic<br />

nematodes. Plant parasitic nematodes were in higher proportion over free-living nematodes.<br />

Pratylenchus spp., Scutellonema spp. and Helicotylenchus spp. were the dominant plantfeeding<br />

species. At the Botanical Reserve Gardens populations of free living nematodes<br />

mainly fungivorous Dorylaimids were abundant followed by predatory Mononchids and<br />

Dorylaimids. Maturity index, an indicator of the ecological successional status of soil<br />

community based on colonizers-persisters (c-p) scale were employed and results showed high<br />

index in the Botanical Reserve Gardens due to presence of many nematodes with high c-p<br />

values i.e Mononchids and Dorylaimids. Their assemblage can be related to reduced soil<br />

disturbance in the ecosystem. Most nematodes with high c-p value are most susceptible to<br />

soil disturbances and their abundance in particular habitat, that habitat is considered more<br />

stable and suitable for agricultural production. This study found that soil dwelling nematodes<br />

may be able to give insight on the effect of particular disturbances on the soil ecology.<br />

5 th International Congress of Nematology, 2008 262

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