Estimating the number of multiple-species geohelminth infections in human communities | Parasitology | Cambridge Core (original) (raw)

Summary

Infections with Ascaris lumbricoides, Triclmris trichiura and the hookworm species are often found in the same communities and individuals. Hosts infected by more than one species are potentially at risk of morbidity associated with each infection. This paper describes the use of a probabilistic model to predict the prevalence of multiple-species infections in communities for which only overall prevalence data exist. The model is tested against field data, using log-linear analysis, and is found to be more effective at estimating the numbers of multiple infections involving hookworms than those involving only A. lumbricoides and T. trichiura. This latter combination of infections is found, in half the communities examined, to be more common than expected by chance. An age-stratified analysis reveals that the degree of interaction between these two infections does not alter significantly with age in the child age classes of a Malaysian population.

References

Anderson, R. M. & Medley, G. F. (1985). Community control of helminth infections of man by mass and selective chemotherapy. Parasitology 90, 629–60.CrossRefGoogle Scholar

Anderson, R. M. & Schad, G. A. (1985). Hookworm burdens and faecal egg counts: an analysis of the biological basis of variation. Transactions of the Royal Society of Tropical Medicine and Hygiene 79, 812–25.CrossRefGoogle ScholarPubMed

Armitage, P. & Berry, G. (1987). Statistical Methods in Medical Research. London: Blackwell Scientific Publications.Google Scholar

Ashford, R. W., Craig, P. S. & Oppenheimer, S. J. (1992). Polyparasitism on the Kenya coast. 1. Prevalence, and association between parasitic infections. Annals of Tropical Medicine and Parasitology 86, 671–9.CrossRefGoogle ScholarPubMed

Augustine, D. L. & Smillie, W. G. (1926). The relation of the type of soils of Alabama to the distribution of hookworm disease. American Journal of Hygiene 6, 36–62.Google Scholar

Biagi, F., Lopez, R. & viso, J. (1975). Analysis of symptoms and signs related to parasitosis in 5215 cases. Progress in Drug Research 19, 10–22.Google Scholar

Booth, M. & Bundy, D. A. P. (1992). Comparative prevalences of Ascaris lumbricoides, Trichuris trichiura and hookworm infections and the prospects for combined control. Parasitology 105, 151–7.CrossRefGoogle ScholarPubMed

Bradley, M., Chandiwana, S. K. & Bundy, D. A. P. (1992). The epidemiology and population biology of Necator americanus in a rural community in Zimbabwe. Transactions of the Royal Society of Tropical Medicine and Hygiene 86, 73–6.CrossRefGoogle Scholar

Buck, A. A., Anderson, R. I., Macrae, A. A. & Fain, A. (1978). Epidemiology of poly-parasitism. I. Occurrence, frequency and distribution of multiple infections in Rural communities in Chad, Peru, Afghanistan and Zaire. Tropenmedizin und Parasitenkunde 29, 61–70.Google ScholarPubMed

Bundy, D. A. P. (1990). Is the hookworm just another geohelminth? In Hookworm Disease - Current Status and New Directions, (ed. Schad, G. A. & Warren, K. S.), pp. 147–164. London: Taylor and Francis.Google Scholar

Bundy, D. A. P., Chandiwana, S. K., Homeida, M. A., Yoon, S. & Mott, K. E. (1991). The epidemiological implications of a multiple infection approach to the control of human helminth infections. Transactions of the Royal Society of Tropical Medicine and Hygiene 85, 274–6.CrossRefGoogle Scholar

Bundy, D. A. P., Cooper, E. S., Thompson, D. E., Didier, J. M., Anderson, R. M. & Simmons, I. (1987 a). Predisposition to Trichuris trichiura infection in humans. Epidemiology and Infection 98, 65–71.CrossRefGoogle ScholarPubMed

Bundy, D. A. P., Cooper, E. S., Thompson, D. E., Didier, J. M. & Simmons, I. (1987 b). Epidemiology and population dynamics of Ascaris lumbricoides and Trichuris trichiura in the same community. Transactions of the Royal Society of Tropical Medicine and Hygiene 81, 987–93.CrossRefGoogle ScholarPubMed

Bundy, D. A. P., Kan, S. P. & Rose, R. (1988). Age related prevalence, intensity and frequency distribution of gastrointestinal helminth infections in urban slum children from Kuala Lumpur, Malaysia. Transactions of the Royal Society of Tropical Medicine and Hygiene 82, 289–94.CrossRefGoogle ScholarPubMed

Chamone, M., Marques, C. A., Atuncar, G. S., Pereira, A. L. A. & Pereira, L. H. (1990). Are there interactions between schistosomes and intestinal nematodes? Transactions of the Royal Society of Tropical Medicine and Hygiene 84, 557–8.CrossRefGoogle ScholarPubMed

Chen, E. R. (1964). At study of soil transmitted helminthic infections and health in pre-schoolchildren of rural villages in south Taiwan. Journal of the Formosan Medical Association 63, 517–30.Google Scholar

Chen, E. R. & Hsieh, H. C. (1989). Control of Soil-transmitted nematode in Taiwan. In Collected Papers on the Control of Soil- Transmitted Helminthiases, Vol IV, pp. 131–146. Tokyo: APCO.Google Scholar

Croll, N. A., Anderson, R. M., Gyorkos, T. W. & Ghadirian, E. (1982). The population biology and control of Ascaris lumbricoides in a rural community in Iran. Transactions of the Royal Society of Tropical Medicine and Hygiene 76, 187–97.CrossRefGoogle Scholar

Daubney, R. & Carman, J. A. (1928). Helminthic infestations of natives in the Kenya highlands. Parasitology 20, 185–206.CrossRefGoogle Scholar

Dazo, B. C. (1989). Western Pacific Region. In Ascariasis and its Prevention and Control (ed. Crompton, D. W. T., Nesheim, M. C. & Pawlowski, Z. S.) pp. 185–206. London: Taylor & Francis.Google Scholar

de Silva, D. G. H. & Jayatilleka, S. M. D. (1981). The prevalence and severity of soil transmitted helminths in an urban slum community in Colombo. Ceylon Medical Journal 26, 160–4.Google Scholar

Forrester, J. E., Scott, M. E. & Bundy, D. A. P. (1988). Clustering of Ascaris lumbricoides and Trichuris trichiura infections within households. Transactions of the Royal Society of Tropical Medicine and Hygiene 82, 282–8.CrossRefGoogle ScholarPubMed

Fulmer, H. S. & Huempfuer, H. R. (1965). Intestinal helminths in East Kentucky: A survey in three rural counties. American Journal of Tropical Medicine and Hygiene 14, 269–75.CrossRefGoogle Scholar

Hall, A., Latham, M. C., Crompton, D. W. T., Stephenson, L. S. & Wolgemuth, J. C. (1982). Intestinal parasitic infections of men in four regions of rural Kenya. Transactions of the Royal Society of Tropical Medicine and Hygiene 76, 728–33.CrossRefGoogle ScholarPubMed

Haswell-Elkins, M. R., Elkins, D. B. & Anderson, R. M. (1987). Evidence for predisposition in humans to infection with Ascaris, hookworm, Enterobius and Trichuris in a south Indian fishing community. Parasitology 95, 323–37.CrossRefGoogle Scholar

Ismid, I. S., Rasad, R. & Rukmono, B. (1981). Prevalence and treatment of intestinal helminthic infections among children in orphanages in Jakarta, Indonesia. Southeast Asian Journal of Tropical Medicine and Public Health 12, 371–5.Google ScholarPubMed

Kan, S. P. (1982). Soil-transmitted helminthiasis in Selangor, Malaysia. Medical Journal of Malaysia 37, 180–90.Google ScholarPubMed

Kan, S. P. (1984). Soil-transmitted helminthiasis among primary school children in Selangor, Malaysia. Medical Journal of Malaysia 39, 143–7.Google ScholarPubMed

Kan, S. P. (1986). Prevalence of soil transmitted helminthiases among urban and rural school children in Malaysia. In Collected Papers on the Control of Soil Transmitted Helminthiases, vol III, pp. 32–36. Tokyo: APCO.Google Scholar

Kan, S. P., Guyatt, H. L. & Bundy, D. A. P. (1989). Geohelminth infection of children from rural plantations and urban slums in Malaysia. Transactions of the Royal Society of Tropical Medicine and Hygiene 83, 817–20.CrossRefGoogle Scholar

Kinoti, G. K. (1971). The prevalence of helminth infections in the Kismu area of Kenya. East African Medical Journal 48, 490–5.Google Scholar

Kirkwood, B. R. (1988). Essentials of Medical Statistics. London: Blackwell Scientific Publications.Google Scholar

March'hadour, P., Carre, J. C. & Dodin, A. (1960). Enquete bacteriologique et parasitologique a l'ile Sainte-Marie. Archives de l'institute Pasteur de Madagascar 28, 246.Google Scholar

Mpairwe, J. B. (1991). Complications of Ascaris lumbricoides infection: case reports from south western Uganda. Journal of Helminthology 65, 286–8.CrossRefGoogle ScholarPubMed

Rickard, E. R. & Kerr, J. A. (1926). The incidence and intensity of hookworm infestation in the various soil provinces of Tenessee. Journal of Preventative Medicine 1, 185–203.Google Scholar

Roche, M. & Layrisse, M. (1966). Nature and causes of hookworm anaemia. American Journal of Tropical Medicine and Hygiene 15, 1030–100.CrossRefGoogle Scholar

Seo, B. S. & Chai, J. (1979). Frequency distribution of Ascaris lumbricoides in rural Koreans with special reference on the effect of changing endemicity. Korean Journal of Parasitology 17, 105–13.CrossRefGoogle ScholarPubMed

Slade, N. F. (1991). Epidemiology of concurrent intestinal nematode infections in laboratory mice and human communities. Ph.D. thesis, University of London.Google Scholar

Upatham, E. S., Viyanant, V., Brockelman, W. Y., Kurathong, S., Lee, P. & Chindaphol, U. (1989). Prevalence, incidence, intensity and associated morbidity of intestinal helminths in South Thailand. International Journal for Parasitology 19, 217–28.CrossRefGoogle ScholarPubMed

Wenlock, R. W. (1977). Prevalence of hookworm and of Schistosoma haemotobium in Rural Xambia. Tropical and Geographical Medicine 29, 415–21.Google Scholar

Yokogawa, M., Vajrathira, S., Vikakul, C., Anantaphruti, M., Yingyourd, P., Tsuji, M. & Kojima, S. (1983). Control of soil-transmitted helminthiasis and its impact on the nutritional status. In Collected Papers on the Control of Soil Transmitted Helminthiases, Vol. II. pp. 295–309. Tokyo: APCO.Google Scholar