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Infection and disease in lymphatic filariasis: an epidemiological approach

Published online by Cambridge University Press:  06 April 2009

B. T. Grenfell
Affiliation:
Department of Zoology, Cambridge University, Downing Street, Cambridge CB2 3EJ, UK
E. Michael
Affiliation:
Department of Zoology, Cambridge University, Downing Street, Cambridge CB2 3EJ, UK

Extract

A major question in the study of any parasitic disease is the relationship between infection and clinical disease. The public health importance of lymphatic filariasis has generated a large body of research in this area, both in laboratory studies (Ottesen, 1984,1989; Maizels & Lawrence, 1991) and in the field (Hayashi, 1962; Hairston & Jachowski, 1968; Denham & McGreevy, 1977; Vanamail et al. 1989 b; Bundy, Grenfell & Rajagopalan, 1991; Srividya et al. 1991 b). Despite this, there is still no conclusive explanation for the apparently complex relationship between infection and clinical disease observed in human communities. At least part of the problem may lie in the current impossibility of measuring adult worm burden in vivo (Pichon et al. 1980; Denham & Fletcher, 1987; Das et al. 1990; Grenfell et al. 1990). Although there has recently been significant progress in the development of immuno logical markers for infection status in humans (Ottesen, 1989; Day et al. 1991 a), microfilaraemia is still the most reliable measure of current infection in the field. Studies in endemic areas indicate that, far from there being any simple direct relationship between microfilaraemia and disease status, it is possible to find some individuals with microfilariae in their blood but no disease, and indeed with all other combinations of infection and disease status (Hairston & de-Meillon, 1968; Hairston & Jachowski, 1968; Beaver, 1970; Bryan & Southgate, 1976; Denham & McGreevy, 1977; Pani et al. 1991). Furthermore, the proportions of people in different categories are often observed to vary between endemic areas (Denham & McGreevy, 1977; Day et al. 1991 a).

Type
Lymphatic Filariasis
Copyright
Copyright © Cambridge University Press 1992

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References

REFERENCES

Barry, C., Ahmed, A. & Khan, A. Q. (1971). Endemic filariasis in Thakurgaon, East Pakistan. American Journal of Tropical Medicine and Hygiene 20, 592–7.CrossRefGoogle ScholarPubMed
Beaver, P. C. (1970). Filariasis without microfilaremia. American Journal of Tropical Medicine and Hygiene 19, 181–9.CrossRefGoogle ScholarPubMed
Bryan, J. H. & Southgate, B. A. (1976). Some observations on filariasis in Western Samoa after mass administration of diethylcarbamazine. Transactions of the Royal Society of Tropical Medicine and Hygiene 70, 3948.CrossRefGoogle ScholarPubMed
Bundy, D. A. P., Grenfell, B. T. & Rajagopalan, P. K. (1991). Immunoepidemiology of lymphatic filariasis: the relationship between infection and disease. In Immunoparasitology Today (ed. Ash, C. & Gallagher, R. B.), pp. A71A75. Cambridge: Elsevier Trends Journals.Google Scholar
Das, P. K., Manoharan, A., Srividya, A., Grenfell, B. T., Bundy, D. A. P. & Vanamail, P. (1990). Frequency distribution of Wuchereria bancrofti microfilariae in human populations and its relationships with age and sex. Parasitology 101, 429–34.CrossRefGoogle ScholarPubMed
Day, K. P., Grenfell, B. T., Spark, R., Kazura, J. W. & Alpers, M. P.. (1991 a). Age-specific patterns of change in the dynamics of Wuchereria bancrofti infections in Papua New Guinea. American Journal of Tropical Medicine and Hygiene 44, 518–27.CrossRefGoogle ScholarPubMed
Day, K. P., Gregory, W. F. & Maizels, R. M. (1991 b). Age- specific acquisition of immunity to infective larvae in a bancroftian filariasis endemic area of Papua New Guinea. Parasite Immunology 13, 277–90.CrossRefGoogle Scholar
Denham, D. A. & Fletcher, C. (1987). The cat infected with Brugia pahangi as a model of human filariasis. Ciba Foundation Symposium 127, 225–35.Google Scholar
Denham, D. A. & McGreevy, P. B. (1977). Brugian filariasis: epidemiological and experimental studies. Advances in Parasitology 15, 243308.CrossRefGoogle ScholarPubMed
Denham, D. A., McGREEvY, P. B., Suswillo, R. R. & Rogers, H. (1983). The resistance to re-infection of cats repeatedly inoculated with infective larvae of Brugia pahangi. Parasitology 86, 1118.CrossRefGoogle ScholarPubMed
Denham, D. A., Ponnudurai, T., Nelson, G. S., Guy, F. & Rogers, H. (1972 a). Studies with Brugia pahangi. I. Parasitological observations on primary infections of cats (Felis catus). International Journal for Parasitology 2, 239–47.CrossRefGoogle ScholarPubMed
Denham, D. A., Ponnudurai, T., Nelson, G. S., Rogers, R. & Guy, F. (1972 b). Studies with Brugia pahangi. II. The effect of repeated infection on parasite levels in cats. International Journal for Parasitology 2, 401–7.CrossRefGoogle ScholarPubMed
Dondero, T. J. JR., Bhattacharya, N. C., Black, H. R., Chowdhury, A. B., Gubleb, D. J., Inui, T. S. & Mukerjee, M. (1976). Clinical manifestations of bancroftian filariasis in a suburb of Calcutta, India. American Journal of Tropical Medicine and Hygiene 25, 6473.CrossRefGoogle Scholar
Grenfell, B. T., Das, P. K., Rajagopalan, P. K. & Bundy, D. A. P. (1990). Frequency distribution of lymphatic fllariasis microfilariae in human populations: population processes and statistical estimation. Parasitology 101, 417–27.CrossRefGoogle ScholarPubMed
Grenfell, B. T., Michael, E. & Denham, D. A. (1991). A model for the dynamics of human lymphatic filariasis. Parasitology Today 7, 318–23.CrossRefGoogle Scholar
Grove, D. I., Valeza, F. S. & Cabrera, B. D. (1978). Bancroftian filariasis in a Philippine village: clinical, parasitological, immunological, and social aspects. Bulletin of the World Health Organization 56, 975–84.Google Scholar
Gubler, D. J. & Bhattacharya, N. C. (1974). A quantitative approach to the study of bancroftian filariasis. American Journal of Tropical Medicine and Hygiene 23, 1027–36.CrossRefGoogle Scholar
Hairston, N. G. & De-Meillon, B. (1968). On the inefficiency of transmission of Wuchereria bancrofti from mosquito to human host. Bulletin of the World Health Organization 38, 935–41.Google ScholarPubMed
Hairston, N. G. & Jachowski, L. A. (1968). Analysis of the Wuchereria bancrofti population in the people of American Samoa. Bulletin of the World Health Organization 38, 2959.Google Scholar
Hayashi, S. (1962). A mathematical analysis on the epidemiology of Bancroftian and Malayan filariasis in Japan. Japanese Journal of Experimental Medicine 32, 1343.Google ScholarPubMed
Hitch, W. L., Lammie, P. J. & Eberhard, M. L. (1989). Heightened anti-filarial immune responsiveness in a Haitian pediatric population. American Journal of Tropical Medicine and Hygiene 41, 657–63.CrossRefGoogle Scholar
Kazura, J. W., Spark, R., Forsyth, K., Brown, G., Heywood, P., Peters, P. & Alpers, M. (1984). Parasitologic and clinical features of bancroftian filariasis in a community in East Sepik province, Papua New Guinea. American Journal of Tropical Medicine and Hygiene 33, 1119–23.CrossRefGoogle Scholar
Knight, R., McAdam, K. P. W. J., Matola, Y. G. & Kirkham, V. (1979). Bancroftian filariasis and other parasitic infections in the Middle Fly River region of Western Papua New Guinea. Annals of Tropical Medicine and Parasitology 73, 563–76.CrossRefGoogle ScholarPubMed
Lammie, P. J., Hitch, W. L., Allen, B. M. W., Hightower, W. & Eberhard, M. L.(1991). Maternal fliarial infection as risk factor for infection in children. Lancet 337, 1005–6.CrossRefGoogle Scholar
McMahon, J. E., Magayuka, S. A., Kolstrup, N., Mosha, F. W., Bushrod, F. M. & Abaru, D. E. (1981). Studies on the transmission and prevalence of Bancroftian filariasis in four coastal villages of Tanzania. Annals of Tropical Medicine and Parasitology 75, 415–31.CrossRefGoogle ScholarPubMed
Maizels, R. M. & Lawrence, R. (1991). Immunological tolerance: the key feature in human filariasis? Parasitology Today 7, 271–6.CrossRefGoogle ScholarPubMed
Muench, H. (1959). Catalytic Models in Epidemiology, Cambridge, Mass.: Harvard University Press.CrossRefGoogle Scholar
Nair, C. P. (1961). Filariasis in centrally administered areas. Part II. Survey of Laccadive, Minicoy and Aminidivi Islands. Indian Journal of Malariology 15, 263–83.Google Scholar
Nutman, T. B., Kumaraswaml, V. & Ottesen, E. A. (1987). Parasite-specific anergy in human filariasis. Insights after analysis of parasite antigen-driven lymphokine production. Journal of Clinical Investigation 79, 1516–23.CrossRefGoogle ScholarPubMed
Ottesen, E. A. (1980). Immunopathology of lymphatic filariasis in man. Springer Seminars in Iminunopathology 2, 373–85.Google Scholar
Ottesen, E. A. (1984). Immunological aspects of lymphatic filariasis and onchocerciasis in man. Transactions of the Royal Society of Tropical Medicine and Hygiene 78 (Suppl.), 918.CrossRefGoogle ScholarPubMed
Ottesen, E. A. (1989). Filariasis now. American Journal of Tropical Medicine and Hygiene 41, 917.CrossRefGoogle ScholarPubMed
Pani, S. P., Balakrishnan, N., Srividya, A., Bundy, D. A. P. & Grenfell, B. T. (1991). Clinical epidemiology of bancroftian filariasis: effect of age and gender. Transactions of the Royal Society of Tropical Medicine and Hygiene 85, 260–4.CrossRefGoogle ScholarPubMed
Pichon, G. (1974). Relations mathématiques entre le nombre des microfilaires ingérées et le nombre des parasites chez différents vecteurs naturels ou expérimentaux de filarioses. Cahiers ORSTOM ser. Entomologie médicale et Parasitologie 12, 199216.Google Scholar
Pichon, G., Merlin, M., Fagneaux, G., Rivière, F. & Laigret, J. (1980). Etude de Ia distribution des numerations microfilariennes dans les foyers de filariose lymphatique. Tropenmedizin und Parasitologie 31, 165–80.Google Scholar
Rajagopalan, P. K., Das, P. K., Subramanian, S., Vanamail, P. & Ramaiah, K. D. (1989). Bancroftian filariasis in Pondicherry, south India. 1. Pre-control epidemiological observations. Epidemiology and Infection 103, 685–92.CrossRefGoogle ScholarPubMed
Remme, J., Ba, O., Dadzie, K. Y. & Karam, M. (1986). A force-of-infection model for onchocerciasis and its applications in the epidemiological evaluation of the Onchocerciasis Control Programme in the Volta River basin area. Bulletin of the World Health Organization 64, 667–81.Google ScholarPubMed
Rochet, M. J. (1990). A simple deterministic model for bancroftian filariasis transmission dynamics. Tropical Medicine and Parasitology 41, 225–33.Google ScholarPubMed
Sasa, M. (1974). Methods for estimating the efficiency of detection of microfllariae in various volumes of blood samples. Southeast Asian Journal for Tropical Medicine and Public Health 5, 197210.Google Scholar
Sri Vidya, A., Krishnamoorthy, K., Sabesan, S., Panicker, K. N., Crenfell, B. T. & Bundy, D. A. P. (1991 a). Frequency distribution of Brugia malayi microfIlariae in human populations. Parasitology 102, 207–12.CrossRefGoogle Scholar
Srividya, A., Pani, S. P., Rajagopalan, P. K., Bundy, D. A. P. & Grenfell, B. T. (1991 b). The dynamics of infection and disease in bancroftian filariasis. Transactions of tile Royal Society of Tropical Medicine and Hygiene 85, 255–9.CrossRefGoogle ScholarPubMed
Udonsi, J. K. (1988). Bancroftian filariasis in the Igwun basin, Nigeria: an epidemiological, parasitological, and clinical study in relation to the transmission dynamics. Folia Parasitologica 35, 147–55.Google Scholar
Vanamail, P., Subramanian, S., Das, P. K., Pani, S. P. & Bundy, D. A. P. (1989 a). Familial clustering in Wuchereria bancrofti infection. Tropical Biomedicine 6, 6771.Google Scholar
Vanamail, P., Subramanian, S., Das, P. K., Pani, S. P., Rajagopalan, P. K., Bundy, I. A. P. & Grenfell, B. T. (1989 b). Estimation of age-specific rates of acquisition and loss of Wuchereria bancrofti infection. Transactions of the Royal Society of Tropical Medicine and Hygiene 83, 689–93.CrossRefGoogle ScholarPubMed
Wada, Y., Tsuda, Y. & Suenaca, O. (1989). Transmission dynamics of Dirofilaria inmitis in a Southwestern part of Japan. Tropical Medicine 31, 3547.Google Scholar
Webber, R. H. (1975). Theoretical considerations in the vector control of fliariasis. Southest Asian Journal for Tropical Medicine and Public Health 6, 544–8.Google Scholar
Weil, G. J., Hussain, R., Kumaraswami, V., Tripathy, S. P., Phillips, K. S. & Ottesen, E. A. (1983). Prenatal allergic sensitization to helminth antigens in offspring of parasite-infected mothers. Journal of Clinical Investigation 71, 1124–9.CrossRefGoogle ScholarPubMed
Wenk, P. (1991). The vector host link in filariasis. Annals of Tropical Medicine and Parasitology 85, 139–47.CrossRefGoogle ScholarPubMed
Wijers, D. J. B. (1977). Bancroftian filariasis in Kenya. 1. Prevalence survey among adult males in the Coast Province. Annals of Tropical Medicine and Parasitology 71, 313–31.CrossRefGoogle Scholar
Wolfe, M. S. & Aslamkhan, M. (1972). Bancroftian filariasis in two villages in Dinajpur district, East Pakistan. American Journal of Tropical Medicine and Hygiene 21, 22–9.CrossRefGoogle ScholarPubMed
Wong, M. S. (1963). Studies on microfilaremia in dogs. I. A search for the mechanisms that stabilize the level of microfilaremia. American Journal of Tropical Medicine and Hygiene 13, 5765.CrossRefGoogle Scholar