The occurrence of Strongyloides ratti in the tissues of mice after percutaneous infection

• Published in: Journal of helminthology 1982-03, Vol.56 (1), p.45-50
• Main Authors: Dawkins, H. J. S., Thomason, H. J., Grove, D. I.
• Format: Article
• Language: English
• Subjects: Abdominal Muscles - parasitology; animal health; animal parasites and pests; Animals; Brain - parasitology; Cerebrospinal Fluid - parasitology; Female; Heart - microbiology; helminths; Intestine, Small - microbiology; Lung - microbiology; Mice; Mice, Inbred C57BL; Migration, Nematoda; Movement; Muscles - parasitology; Research Papers; Skin - parasitology; Strongyloides - physiology; Strongyloides ratti (Nematoda); Strongyloidiasis - parasitology
• ISSN: 0022-149X; 1475-2697
• DOI: 10.1017/S0022149X00034994

The migration of infective larvae of Strongyloides ratti has been examined in C57B1/6 mice after percutaneous infection of the anterior abdominal wall. Lateral migration of larvae through the skin and subcutaneous tissues was not seen. Large numbers of larvae were recovered from the muscles between 2 and 24 hours after infection and larvae were seen in the cerebrospinal fluid 24 and 48 hours after infection. Insignificant numbers of larvae were seen in the blood, serosal cavities, liver, spleen, kidneys, brain or nasopharynx. Larvae arrived in the lungs between 24 and 72 hours after infection and worms were first noted in the small intestines at 48 hours. It is concluded that larvae migrate preferentially to the muscles and CSF before passing to the lungs, but the exact mode of travel is uncertain.