Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-30T20:00:19.830Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Life History of Ascaris lumbricoides, L. Part V

Published online by Cambridge University Press:  06 April 2009

F. H. Stewart
F. H. Stewart
Affiliation:
(From the Lister Institute of Preventive Medicine, London, and the Quick Laboratory, Cambridge.)
Get access Rights & Permissions [Opens in a new window]

Extract

Since the publication of Part IV (Stewart, 1919), four papers dealing with the life-history of Ascaris lumbricoides have appeared.

(1) Ransom and Foster (1920) give a full account of their work, preliminary reports of which have already been published (1917 and 1919).

As evidence in the problem of whether the worm can undergo full development in one host alone, they attach great importance to two experiments, one on a kid and one on a lamb, in which after the administration of ripe eggs of A. suilla, they recovered worms from the intestines. In the kid, which died 24 days after the first feeding, the worms measured from 4·3 to 11·4 mm.; in the lamb, which was killed 103 days after feeding, the worms measured from 60 to 110 mm. The authors consider that, as Ascaris infection is uncommon in goats and sheep, the worms may without doubt be ascribed to the experimental feeding. They record five experiments on pigs which gave doubtful results, since the pigs fed with Ascaris eggs were found, after varying periods, to be on the average less infected with Ascaris than pigs which were kept as controls, and had not been so fed.

Type
Research Article
Information
Parasitology , Volume 13 , Issue 1 , March 1921 , pp. 37 - 47
Copyright
Copyright © Cambridge University Press 1921

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Looss, A. (1911). The Anatomy and life-history of Agchylostoma duodenale Dub. Pt. II. Records of the School of Medicine, Cairo.Google Scholar
Ransom, B. H. and Foster, W. D. (1917). Life-history of Ascaris lumbricoides and related forms. Journ. Agric. Research, ii. 395.Google Scholar
Ransom, B. H. and Foster, W. D. (1919). Recent discoveries concerning the life-history of Ascaris lumbricoides. Journ. of Parasitology, v. 93.Google Scholar
Ransom, B. H. and Foster, W. D. (1920). Observations on the life-history of Ascaris lumbricoides. U. S. Dept. Agricult. Bull. No. 817.Google Scholar
Stewart, F. H. (1917). On the development of Ascaris lumbricoides Lin. and Ascaris suitta Duj. in the rat and mouse. Parasitology, ix. 215.Google Scholar
Stewart, F. H. (1917 a). Note on Ascaris infection in man, the pig, rat and mouse. Ind. Med. Gaz. lii. 272.Google Scholar
Stewart, F. H. (1918). On the development of Ascaris lumbricoides and A. mystax in the mouse. Parasitology, x. 189.CrossRefGoogle Scholar
Stewart, F. H.On the life-history of Ascaris lumbricoides L. Parasitology, x. 197.Google Scholar
Stewart, F. H. (1919). Ditto. Part IV. Parasitology, xi. 385.CrossRefGoogle Scholar
Stewart, F. H. (1920). Recent work on round worm infection. Journ. R. Soc. Trop. Med. and Hyg. xiv. 20.Google Scholar
Yoshida, S. O. (1919). On the development of Ascaris lumbricoides. Journ. of Parasitology, v. 109.Google Scholar
Yoshida, S. O. (1919 a). On the migrating course of Ascarid larvae. Journ. of Parasitology, vi. 19.CrossRefGoogle Scholar