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The survival of Trichuris muris in wild populations of its natural hosts

Published online by Cambridge University Press:  06 April 2009

J. M. Behnke
Affiliation:
Department of Zoology, Bedford College, London NW 1
D. Wakelin
Affiliation:
Wellcome Laboratories for Experimental Parasitology, University of Glasgow, Bearsden, Glasgow G61 1QH

Extract

The results of experimental infections of Trichuris muris in wild field mice (Apodemus sylvaticus) and laboratory-bred wild house mice (Mus musculus) showed that the parasite elicited an immune response similar to that previously described in strains of laboratory mice. Experiments in laboratory mice showed that the parasite was able to become sexually mature only when small single infections or repeated low-level infections were given. A survey of a population of 43 wild house mice naturally infected with T. muris showed that the pattern of small worm burdens in the majority of mice was consistent with a situation of repeated low-level infection, except in the case of six female mice which harboured larger mature worm burdens. It is suggested that in these mice pregnancy and/or lactation may have suppressed the immune response, allowing the accumulation of a worm burden in excess of the threshold for worm expulsion.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1973

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References

REFERENCES

Beenard, J., (1964). Nématodes de micromammiferes récoltés dans le marais Vendéen. Vie et milieu 15, 451–6.Google Scholar
Connan, R. M., (1970). The effect of host lactation on the ‘self-cure’ of Nippostrongylus brasiliensis in rats. Parasitology 61, 2733.CrossRefGoogle Scholar
Connan, R. M., (1972). The effect of host lactation on a second infection of Nippostrongylus brasilienaia in rats. Paroaitology 64, 229–33.CrossRefGoogle ScholarPubMed
Dineen, J. K., & Kelly, J. D., (1972). The suppression of rejection of Nippostrongylus brasilienaia in lactating rats: the nature of the immunological defect. Immunology 22, 112.Google ScholarPubMed
Dujardin, M. F., (1845). Histoire naturelle des Helminthes ou vera Intestinaux, 564 pp. Paris.CrossRefGoogle Scholar
Fahmy, M. A. M., (1954). An investigation of the life cycle of Trichuris muria. Parasitology 44, 50–7.CrossRefGoogle Scholar
Jenkins, D. C., & Phillipson, R. F., (1971). The kinetics of repeated low-level infections of Nippostrongylus brasiliensis in the laboratory rat. Parasitology 62, 457–65.CrossRefGoogle ScholarPubMed
Mulligan, W., Urquhart, G. M., Jennings, F. W., & Neilson, J. I. M., (1965). Immunological studies on Nippostrongylus brasiliensis infection in the rat. The ‘self-cure’ phenomenon. Experimental Parasitology 16, 341–7.CrossRefGoogle ScholarPubMed
Ogilvie, B. M., (1965). Role of adult worms in immunity of rats to Nippostrongylus brasiliensis. Parasitology 55, 325–35.CrossRefGoogle ScholarPubMed
Roman, E., (1951). Étude écologique et morphologique sur les acanthocéphales et les nématodes parasites des rats de la région Lyonnaise. Mémoires du Museum nationale d'histoire naturelle 2, 49270.Google Scholar
Wakelin, D., (1967). Acquired immunity to Trichuris muris in the albino laboratory mouse. Parasitology 57, 515–24.CrossRefGoogle ScholarPubMed
Wakelin, D., (1970). The stimulation of immunity and the induction of unresponsiveness to Trichuris muris in various strains of laboratory mice. Zeitschrift für Parasitenkunde 35, 162–8.CrossRefGoogle ScholarPubMed
Wakelin, D., (1973). The stimulation of immunity to Trichuris muris in mice exposed to low-level infections. Parasitology 66, 181–9.CrossRefGoogle ScholarPubMed
Wertheim, G., (1971). Helminths of birds and mammals from Israel. III. Helminths from chromosomal forms of the mole-rat Spalax ehrenbergi. Journal of Helminthology 55, 161–9.CrossRefGoogle Scholar