Skip to main content
×
×
Home

Repeated patent infection of adult dogs with Toxocara camis

  • R. M. Maizels (a1) and M. Meghji (a1)
Abstract

Three adult male greyhounds have been repeatedly infected with Toxocara canis by oral administration of 100 to 200 infective ova. Each infection has become patent as shown by the presence of eggs in faeces. Anthelmintic treatment between 7 and 14 weeks after infection yielded an average of 25% of the inoculum as adult worms. These dogs have continued to be fully susceptible to infection despite repeated exposure to this parasite, and despite the presence of scrum antibody to both parasite surface and secreted antigens. These findings imply that adult dogs may not always be immune to toxocaral infection and may therefore contribute significantly to the problem of environmental contamination with T. canis ova.

Copyright
References
Hide All
Borg, O. A. & WOODRUFF, A. W. (1973) Prevalence of infective ova of Toxocara species in public places. British Medical Journal, iv, 470472.
Dada, B. J. O. & Lindquist, W. D. (1979) Prevalence of Toxocara spp. eggs in some public grounds and highway rest areas in Kansas. Journal of Helminthology, 53, 145146.
De Savigny, D. H. (1975) In vitro maintenance of Toxocara canis larvae and a simple method for the production of Toxocara ES antigen for use in scrodiagnostic tests for visceral larva migrans. Journal of Parasitology, 61, 781782.
Dobson, C. (1961) Certain aspects of the host-parasite relationship of Nematospiroides dubius (Baylis). I. Resistance of male and female mice to experimental infections. Parasitology, 51, 173179.
Douglas, J. R. & Baker, N. F. (1959) The chronology of experimental intrauterine infections with Toxocara canis (Werner, 1782) in the dog. Journal of Parasitology, 45 (Supplement), 4344.
Dubey, J. P. (1978) Patent Toxocara canis infection in ascarid-naive dogs. Journal of Parasitology, 64, 10211023.
Ehrenford, F. A. (1957) Canine ascariasis as a potential source of visceral larva migrans. American Journal of Tropical Medicine and Hygiene, 6, 166170.
Fernando, S. T. (1968) Immunological response of the hosts of Toxocara canis (Werner, 1782) infection. I. Effect of superinfection on naturally infected puppies. Parasitology, 58, 547559.
Girdwood, R. W. A., Quinn, R., Smith, H. V. & Bruce, R. G. (1978) Assessment of some aspects of the potential human health hazard presented by canine toxocariasis in the Glasgow area. Communicable Diseases, Scotland, 12, (32), vii–viii.
Glickman, L. T., Dubey, J. P. & Winslow, L. J. (1981) Serological responses of ascarid-frcc dogs to Toxocara canis infection. Parasitology, 82, 383387.
Glickman, L. T., Schantz, P. M. & Cypess, R. H. (1979) Canine and human toxocariasis: review of transmission, pathogenesis, and clinical disease. Journal of the American Veterinary Medical Association, 175, 12651269.
Greve, J. H. (1971) Age resistance to Toxocara canis in ascarid-frcc dogs. American Journal of Veterinary Research 32, 11851192.
Jacobs, D. E. & Pegg, E. J. (1976) Gastro-intcstinal nematodes of elite show dogs in Great Britain. Journal of Helminthology, 50, 265266.
Jacobs, D. E. & Prole, J. H. B. (1976) Helminth infections of British dogs: prevalence in racing greyhounds. Veterinary Parasitology, 1, 377.
Jacobs, D. E., Pegg, E J. & Stevenson, P. (1977) Helminths of British dogs: Toxocara canis-a veterinary perspective. Journal of Small Animal Practice, 18, 7992.
Lloyd, S., Kristensen, S. & Soulsby, E. J. L.(1981)The effect of corticosteroid therapy on infection with Toxocara canis in dogs. Zeitschrift fur Parasitenkunde, 66, 5761.
Lloyd, S., Amerasinghe, P. H. & Soulsby, E. J. L. (1983)Periparturient immunosuppression in the bitch and its influence on infection with Toxocara canis. Journal of Small Animal Practice, 24, 237247.
Maizels, R. M., Meghji, M. & Ogjlvie, B. M. (1983 a) Resrictcd sets of parasite antigens from the surface of different stages and sexes of the nematode parasite Nippostrongylus brasillensis. Immunology, 48, 107121.
Maizels, R. M., Partono, F., Oemijati, S. & Ogilvie, B. M. (1983 b) Antigenic analysis of Brugla timori, a filarial nematode of man: initial characterization by surface radioiodination and evaluation of diagnostic potential. Clinical and Experimental Immunology, 51, 269277.
Maizels, R. M., De Savigny, D. & Ogilvie, B. M. (1984) Characterization of surface and excretory-secretory antigens of Toxocara canis infective larvae. Parasite Immunology, 6, 2327.
Oshima, T. (1976) Observations on the age resistance, cosinophilia, and larval behavior in the helminth-free beagles infected with Toxocara canis. Japanese Journal of Parasitology 25, 447455.
Read, M. A. & Thompson, R. C. A. (1976) Prevalence of Toxocara canis and Toxascaris leonina ova in dog faeces deposited on the streets of Leeds. Journal of Helminthology, 50, 9596.
Scothorn, M. W., Koutz, F. R. & Groves, H. F. (1965) Prenatal Toxocara canis infection in pups. Journal of the American Veterinary Medical Association, 146, 4548.
Sprent, J. F. A. (1958) Observations on the development of Toxocara canis (Werner 1782) in the dog. Parasitology, 48, 184209.
Sprent, J. F. A. (1961) Post-parturient infection of the bitch with Toxocara canis. Journal of Parasitology, 47, 284.
Turner, T. & Pegg, E. (1977) A survey of patent nematode infestations in dogs. Veterinary Record, 100, 284285.
Webster, G. A. (1958) On prenatal infection and the migration of Toxocara canis Werner, 1782 in dogs. Canadian Journal of Zoology, 36, 435440.
Windon, R. G. & Dineen, J. K.(1981) The effect of selection of both sire and dam on the response of F1 generation lambs to vaccination with irradiated Trichostrongylus colubriformis larvae. International Journal of Parasitology, 11, 1118.
Williams, R. W.& Menning, E. L (1961) Intestinal helminths in dogs and cats of the Bermuda Islands and their potential public health significance, with a report of a probable case of visceral larva migrans. Journal of Parasitology, 47, 947951.
Wiseman, R. A. & Woodruff, A. W. (1971) Toxocariasis Africa and Malta. The frequency of infection in host animals and its incidence and distribution in humans as revealed by skin sensitivity tests. Transactions of the Royal Society for Tropical Medicine and Hygiene, 65, 439449.
Woodruff, A. W., Thacker, C. K. & Shah, A. I. (1964) Infection with animal helminths. British Medical Journal, i, 10011005.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Helminthology
  • ISSN: 0022-149X
  • EISSN: 1475-2697
  • URL: /core/journals/journal-of-helminthology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 5 *
Loading metrics...

Abstract views

Total abstract views: 101 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 12th June 2018. This data will be updated every 24 hours.