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The epidemiology of soil-transmitted helminth and protozoan infections in south-west Cameroon

Published online by Cambridge University Press:  31 January 2011

J.V. Mbuh*
Affiliation:
Department of Plant and Animal Sciences, Faculty of Science, University of Buea, Cameroon
N.H. Ntonifor
Affiliation:
Department of Plant and Animal Sciences, Faculty of Science, University of Buea, Cameroon
J. Ojong
Affiliation:
Department of Plant and Animal Sciences, Faculty of Science, University of Buea, Cameroon

Abstract

A cross-sectional study of the prevalence, intensity and effects of soil-transmitted helminth and protozoan infections was undertaken among patients at the Buea Hospital Annex located in Buea sub-division of Cameroon. Stool samples from 356 subjects (174 males and 182 females) were collected and processed using standard concentration methods. Our results showed that 31.0% of subjects were infected with intestinal helminths and the prevalence was higher in females (32.4%) than in males (30.5%). A significantly higher prevalence was observed in rural (47.2%) than in urban areas (21.0%); significance < 0.1%. Prevalence was highest among those aged between 6 and 12 years (41.4%). The total prevalence of intestinal helminth infections were 19.3% for Ascaris lumbricoides, 14.0% for hookworm and 11.8% for Trichuris trichiura. The intensity of infection was unevenly distributed, with very heavy loads concentrated in a few individuals. Data also showed that 28.1% (100/356) of the subjects were infected with protozoans. Females showed a higher prevalence (28.6%; 52/182) than males (20.7%; 36/174). Also, there was a significantly higher prevalence in rural (34.0%; 49/144) than urban areas (18.4%; 39/212); significance < 0.1%. The age group 6–12 years again had a higher prevalence (37.1%; 26/70). The total prevalence of intestinal protozoans was: Entamoeba histolytica (24.4%), Entamoeba coli (11.2%) and Giardia lamblia (0.6%). These relatively heavy prevalences in patients may be reduced by appropriate medication and maintaining strict personal hygiene. Health education, clean water supply, good sewage management and a congenial environment will all help to minimize infection.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2011

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References

Aksoy, U., Akisu, C., Tuncay, S., Delibas, S.B., Iceboz, T., Over, L. & Oral, A.M. (2005) An outbreak of intestinal protozoa associated with drinking water. Journal of Science and Medicine 73, 163166.Google Scholar
Albonico, M., Crompton, D.W.T. & Savioli, L. (1999) Control strategies for human intestinal nematode infections. Advances in Parasitology 42, 227341.Google ScholarPubMed
Anosike, J.C., Zacheus, V., Adeiyongo, C., Abanobi, O., Dada, E. & Kete, T. (2006) Intestinal worms infestation in a Central Nigerian rural community. Journal of Applied Science and Environmental Management 10, 6166.Google Scholar
Asaolu, S.O., Ofoezie, I.E., Odumuyiwa, P.A., Sowemimo, O.A. & Ogunniyi, T.A.B. (2002) Effect of water supply and sanitation on the prevalence and intensity of Ascaris lumbricoides among pre-school-age children in Ajebandele and Ifewara, Osun State, Nigeria. Transactions of the Royal Society of Tropical Medicine and Hygiene 96, 600604.CrossRefGoogle ScholarPubMed
Ash, L.R. & Orihel, T.C. (1991) Parasites: A guide to laboratory procedures and identification. 328 pp. Chicago, Illinois, USA, American Society of Clinical Pathologists.Google Scholar
Auer, C. (1990) Health status of children living in a squatter area of Manila, Philippines, with a particular emphasis on intestinal parasites. Southeast Asian Journal of Tropical Medicine and Public Health 21, 289300.Google Scholar
Behnke, J.M., Declercy, D., Sacko, M., Gilbert, F.S., Valtara, D.B. & Vercryyese, J. (2000) The epidemiology of human hookworm infections in the southern region of Mali. Tropical Medicine and International Hygiene 5, 343354.CrossRefGoogle ScholarPubMed
Belizario, V.Y., Amarillo, M.E., de Leon, W.U., de los Reyes, A.E., Bugayong, M.G. & Macatangay, B.J. (2003) A comparison of the efficacy of single doses of albendazole, ivermectin, and diethylcarbamazine alone or in combinations against Ascaris and Trichuris spp. Bulletin of the World Health Organization 81, 3542.Google ScholarPubMed
Beltran, M., Garaycochea, M., Bellido, N., Garcia, J., Rios, L., Bernui, G. & Gonzales, R. (2004) Prevalence of amoebiasis by Entamoeba histolytica/E. dispar in Three Regions of Peru. National Institute of Health 8, 316.Google Scholar
Booth, M. & Bundy, D.A.P. (1992) Comparative prevalence of Ascaris lumbricoides, Trichuris trichiura and hookworm infections and the prospects for combined control. Parasitology 105, 151157.CrossRefGoogle ScholarPubMed
Bundy, D.A.P. & de Silva, N.R. (1998) Can we deworm this wormy world? British Medical Journal 54, 421432.Google ScholarPubMed
Bundy, D.A.P., Hall, A., Medley, G.F. & Savioli, L. (2004) Evaluating measures to control intestinal parasite infections. World Health Statistics Quarterly 45, 168179.Google Scholar
Cabrera, B.D., Lorenzo, M., Abrantes, W., Go, T. & Ortiz, C. (1989) An attempt to eradicate A. lumbricoides and hookworm infection in an island in Sorsogon, Philippines for a three year period. pp. 105120in Collected Papers on the Control of Soil-transmitted Helminthiasis IV. Tokyo, APCO.Google Scholar
Christensen, N.O., Gotsche, G. & Frandsen, F. (1984) Parasitological techniques for use in laboratory maintenance of schistosomes and used in the studies of the epidemiology of human and bovine schistosomiasis. 112 pp. Danish Bilharziasis Laboratory Manual.Google Scholar
Cifuentes, E., Gomez, M., Blumenthal, U., Tellez-Rojo, M.M., Romieu, I., Ruiz-Palacios, G. & Ruiz-Velazco, S. (2000) Risk factors for Giardia intestinalis infection in agricultural villages practicing wastewater irrigation in Mexico. American Journal of Tropical Medicine and Hygiene 62, 388392.CrossRefGoogle ScholarPubMed
Crompton, D.W.T. (1994) Ascaris lumbricoides. pp. 175196in Scott, M.E. & Smith, G. (Eds) Parasitic and infectious diseases Volume 14. London, Academic Press.Google Scholar
Daryani, A., Eltehad, G.S. & Ziael, H. (2003) Prevalence of intestinal parasitic infections among primary school students in Ardabil. Iran University Medical School 5, 83.Google Scholar
Hall, A. (1993) Intestinal parasitic worms and the growth of children. Transactions of the Royal Society of Tropical Medicine and Hygiene 87, 241242.CrossRefGoogle ScholarPubMed
Hamida, K., Chawdhury, S. & Zarine, J.B. (1999) Infestation of three intestinal worms in children of three selected rural areas, Bangladesh. Pakistan Journal of Zoology 31, 391396.Google Scholar
Hohmann, H., Panzer, S., Phimpachan, C., Southivong, C. & Schelp, F.P. (2001) Relationship of intestinal parasites to the environment and to behavioural factors in children in the Bolikhamxay Province of Lao PDR. South East Asian Journal of Tropical Medicine and Public Health 32, 413.Google Scholar
Holland, C.V., Asaolu, S.O., Crompton, D.W., Stoddart, R.C., Macdonald, R. & Torimiro, S.E. (1989) The epidemiology of Ascaris lumbricoides and other soil-transmitted helminths in primary school children from Ile-Ife, Nigeria. Parasitology 99, 275285.CrossRefGoogle ScholarPubMed
Hotez, J.P., De Silva, N.R., Brooke, S. & Bethony, J. (2003) Soil transmitted helminth infection: the nature, causes and burden of the condition. 79 pp. Disease Control Priorities Project, DCPP Working Paper no. 3, Fogarty International Center. Bethesda, Maryland, USA, National Institutes of Health.Google Scholar
Howard, S.C., Donelly, C.A., Kabalereine, N.B., Retard, R.C. & Brooker, S. (2002) Spatial and intensity dependent variations in associations between multiple species helminths infections. Acta Tropica 83, 141149.CrossRefGoogle Scholar
Ismail, M.M., Rajapakse, A.L., Suraweera, M.G.W. & Amarasinghe, D.K.C. (1993) Some socio-economic and health-related factors and soil transmitted infection: 2 Relationship to re-infection. pp. 2235in Collected Papers on the Control of Soil-transmitted Helminthiasis V. Tokyo, APCO.Google Scholar
Kightlinger, L.K., Seed, J.R. & Kightlinger, M.B. (1998) Ascaris lumbricoides intensity in relation to environmental, socioeconomic, and behavioral determinants of exposure to infection in children from southeast Madagascar. Journal of Parasitology 84, 480484.CrossRefGoogle ScholarPubMed
Kim, B.M., Yong, T. & Lee, K. (2003) The intestinal parasite infection status of inhabitants in the Roxas City, The Philippines. Korean Journal of Parasitology 41, 113115.CrossRefGoogle ScholarPubMed
Kongs, A., Marks, G., Verl, P. & Vander, S.P. (2001) The unreliability of the Kato-Katz technique limits its usefulness for evaluating S. mansoni infections. Tropical Medicine and International Health 6, 163169.CrossRefGoogle ScholarPubMed
Kouontchou, S., Quakyi, I.A. & Leke, R. (2002) Prevalence of multiple concomitant intestinal infections in simbok of malaria endemic village in Cameroon. Journal of the Cameroon Academy of Sciences 2, 202296.Google Scholar
Lee, K.J., Ahn, Y.K. & Yong, T.S. (2000) A small scale survey of intestinal parasite infections among children and adolescents in Legaspi City, the Philippines. Korean Journal of Parasitology 38, 183185.CrossRefGoogle ScholarPubMed
Lopiso, E., Yared, M. & Ayele, A. (2002) Prevalence of hookworm infection and haemoglobin status among rural elementary school children in southern Ethiopia. Ethiopian Journal of Health and Development 16, 113115.Google Scholar
Naish, S., McCarthy, J. & Williams, G.M. (2004) Prevalence, intensity and risk factors for soil-transmitted helminth infections in a South Indian fishing village. Acta Tropica 91, 177187.CrossRefGoogle Scholar
Ndamukong, K.J.N. (2005) Epidemiology of intestinal nematodes in school–age children of the Kumba Health District of Cameroon. East African Medical Journal 82, 558563.Google Scholar
Ndenecho, L., Ndamukong, K.J.N. & Matute, M.M. (2002) Soil transmitted nematodes in children in Buea Health District of Cameroon. East African Medical Journal 79, 442447.CrossRefGoogle ScholarPubMed
Needham, G., Kim, H.T., Hoa, N.V., Cong, L.D., Michael, E., Drake, L., Hall, A. & Bundy, D.A.R. (1998) Epidemiology of soil transmitted nematode infections in Ha Nam Province, Vietnam. Tropical Medicine and International Hygiene 3, 104112.Google Scholar
Rossignol, J.-F., Ayman, A. & Marc, S.A. (2001) Treatment of diarrhoea caused by Giardia intestinalis and Entamoeba histolytica or E. dispar: a randomized, double-blind, placebo-controlled study of nitazoxanide. Journal of Infectious Diseases 184, 381384.CrossRefGoogle ScholarPubMed
Saathoff, E., Olsen, A., Kvalsvig, J.D. & Geissler, P.W. (2002) Geophagy and its association with geohelminth infection in rural schoolchildren from northern KwaZulu-Natal, South Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene 96, 485490.CrossRefGoogle ScholarPubMed
Scolari, C., Torti, C., Beltrame, A., Metleelli, A., Castelli, F., Gulletta, M., Rabai, M., Mosdrana, S. & Urbani, C. (2000) Prevalence and distribution of soil-transmitted helminth (STH) infections in urban and indigenous school children in Oretilgueria State of Parena Brazil: implication for control. Tropical Medicine and International Hygiene 5, 302307.CrossRefGoogle Scholar
Slifko, T.R., Smith, H.V. & Rose, J.B. (2000) Emerging parasite zoonoses associated with water and food. International Journal for Parasitology 30, 13791393.CrossRefGoogle ScholarPubMed
Stoltzfus, R.J., Kvalsvig, J.D., Chwaya, H.M., Montresor, A., Albonico, M., Tielsch, J.M., Savioli, L. & Pollitt, E. (2001) Effects of iron supplementation and anthelmintic treatment on motor and language development of preschool children in Zanzibar: double blind, placebo controlled study. British Medical Journal 323, 13891393.CrossRefGoogle ScholarPubMed
World Health Organization (1981) Intestinal protozoan and helminthic infections: report of a WHO Scientific Group. WHO Technical Report Series 1981, 666. Geneva, WHO.Google Scholar
World Health Organization (1997) Amoebiasis. Weekly Epidemical Records 72, 97100.Google Scholar
Yu, S.A., Jang, Z.X. & Qi, X.L. (1989) The present situation of soil-transmitted helminthiasis in China. Collected Papers on the Control of Soil transmitted Helminthiases I.Google Scholar