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Intake and Migration of the Microfilariae of Onchocerca volvulus (Leuckart) in Simulium damnosum Theobald

Published online by Cambridge University Press:  05 June 2009

B. R. Laurence
B. R. Laurence
Affiliation:
Department of Entomology, London School of Hygiene and Tropical Medicine
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Extract

1. The intake of microfilariae of Onchocerca volvulus in two series of females of Simulium damnosum fed on an infected human volunteer in West Africa and dissected after staining in London was from 0–171 microfilariae per female in one series and from 0–152 microfilariae per female in the other series. The distribution of microfilariae per female became more normal when plotted on a geometric scale.

2. The migration of the microfilariae was followed in the two series of flies by comparing the geometric (Williams) mean numbers of microfilariae in the stomach, abdomen, thorax and head, from 2 minutes to 48 houis after engorgement on blood. Microfilariae left the blood meal rapidly after engorgement, 40–50% leaving the stomach within the first 60 minutes.

Type
Research Article
Information
Journal of Helminthology , Volume 40 , Issue 3-4 , September 1966 , pp. 337 - 342
Copyright
Copyright © Cambridge University Press 1966

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References

REFERENCES

Anderson, R. C., 1956.—“The life cycle and seasonal transmission of Ornithofilaria fallisensis Anderson, a parasite of domestic and wild ducks.” Can. J. Zool., 34, 485–525.CrossRefGoogle Scholar
Duke, B. O. L. and Lewis, D. J., 1964.—“Studies on factors influencing the transmission of onchocerciasis. III.—Observations on the effect of the peritrophic membrane in limiting the development of Onchocerca volvulus microfilariae in Simulium damnosum.” Ann. trop. Med. Parasit., 58, 83–88.CrossRefGoogle Scholar
Laurence, B. R. and Pester, F. R. N., 1961.—“The behaviour and development of Brugia patei (Buckley, Nelson and Heisch, 1958) in a mosquito host, Mansonia uniformis (Theobald).” J. Helminth., 35, 285–300.CrossRefGoogle Scholar
Lebied, B., 1961.—“Introduction à la theorie de l'revolution intrasyncytiale des Filariata. I. Sur la phagocytose des microfilaires Onchocerca volvulus par les fibres musculaires thoraciqucs chez Simulium.” Riv. Parassit., 22, 107–136.Google Scholar
Lewis, D. J., 1953.—“Simulium damnosum and its relation to onchocerciasis in the Anglo-Egyptian Sudan.” Bull. ent. Res., 43, 597–644.CrossRefGoogle Scholar
Nakamura, Y., 1964.—“Experimental studies on the role of Aedes togoi in the transmission of Bancroftian filariasis. I. Number of microfilariae taken up by the female and their movement in her body.” Endem. Dis. Bull. Nagasaki Univ., 6, 25–33 (In Japanese, English Title and Summary),Google Scholar
Williams, C. B., 1964.—Patterns in the balance of nature and related problems in quantitive ecology. Academic Press, London and New York.Google Scholar