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Original Articles

Studies on the Epidemiology of Filariasis in West Africa, with Special Reference to the British Cameroons and the Niger Delta

VI.—The Chance of Infection with Loa Loa Incurred by Chrysops in Feeding on Different Age-Groups of the Human Population in Villages in the Rainforest and in the Forest Fringe of the British Cameroons

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Pages 66-79 | Received 19 Jan 1955, Published online: 17 Mar 2016

REFERENCES

  • Bertram, D. S. (1950). Studies on the transmission of cotton rat filariasis. II: Factors influencing the efficiency of the vector, Liponyssus bacoti. Ann. Trop. Med. Parasit., 44, 55.
  • Duke, B. O. L. (1954). The transmission of loiasis in the forest-fringe area of the British Cameroons. Ibid., 48, 349.
  • Gordon, R. M., and Lumsden, W. H. R. (1939). A study of the behaviour of the mouth-parts of mosquitoes when taking up blood from living tissue; together with some observations on the ingestion of microfilariae. Ibid., 33, 259.
  • Gordon, R. M., and Lumsden, W. H. R. and Webber, W. A. F. (1955). A new technique for the concentration of microfilariae from the venous blood, and its application to their detection in persons harbouring them in low density; together with observations on the significance of such low densities. Ibid., 49, 80.
  • Kershaw, W. E. (1951). Studies on the epidemiology of filariasis in West Africa, with special reference to the British Cameroons and the Niger delta. II: The influence of town and village evolution and development on the incidence of infections with Loa loa and Acanthocheilonema perstans. Ibid., 45, 261.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. (1954). Studies on the intake of microfilariae by their insect vectors, their survival, and their effect on the survival of their vectors. IV: The survival-rate of Chrysops under laboratory conditions, and the effect upon it of Loa loa. Ibid., 48, 329.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. (1954). Studies on the intake of microfilariae by their insect vectors, their survival, and their effect on the survival of their vectors. 11: The intake of the microfilariae of Loa loa and Acanthocheilonema perstans by Chrysops spp. Ibid., 48, 102.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. and Duke, B. O. L. (1954). Studies on the intake of microfilariae by their insect vectors, their survival, and their effect on the survival of their vectors. V: The survival of Loa loa in Chrysops silacea under laboratory conditions. Ibid., 48, 340.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. and Duke, B. O. L. and Budden. F. H. 1954). Distribution of microfilariae of O. volvulus in the skin, its relation to the skin changes and to eye lesions and blindness. Brit. Med. J., 2, 724.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. and Duke, B. O. L. and Budden. F. H. Keay, R. W. J., Nicholas, W. L., and Zahra, A. (1953). Studies on the epidemiology of filariasis in West Africa, with special reference to the British Cameroons and the Niger delta. IV: The incidence of Loa loa and Acanthocheilonema perstans in the rain-forest, the forest fringe and the mountain grasslands of the British Cameroons, with observations on the species of Chrysops and Culicoides found. Ann. Trop. Med. Parasit., 47, 406.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. and Duke, B. O. L. and Budden. F. H. Keay, R. W. J., Nicholas, W. L., and Zahra, A. Lavoipierre, M. M. J., and Chalmers, T. A. (1953). Studies on the intake of microfilariae by their insect vectors, their survival, and their effect on the survival of their vectors. I: Dirofilaria immitis and Aëdes aegypti. Ibid., 47, 207.
  • Kershaw, W. E. Chalmers, T. A., and Duke, B. O. L. Crewe, W., and Beesley, W. N. and Duke, B. O. L. and Budden. F. H. Keay, R. W. J., Nicholas, W. L., and Zahra, A. Lavoipierre, M. M. J., and Chalmers, T. A. and Nicholas, W. L. (1954). Studies on the epidemiology of filariasis in West Africa, with special reference to the British Cameroons and the Niger delta. V: The intensity of infections with Loa loa and with Acanthocheilonema perstans in the rain-forest, the forest fringe and the mountain grasslands of the British Cameroons, and its relation to the incidence. Ibid., 48, 110.
  • Muirhead-Thomson, R. C. (1951). The distribution of anopheline mosquito bites among different age groups: a new factor in malaria epidemiology. Brit. Med. J., 1, 1114.
  • Oldroyd, H. (1952). A new Chrysops (Diptera, Tabanidae) from the British Cameroons. Ann. Trop. Med. Parasit., 46, 155.

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