Penetration Enzymes of Schistosome Cercariae.

Abstract

Cercarial penetration enzymes presented during percutaneous infection were antigenic but not protective. Sustained high cercarial production requires critical conditions of snail health and exposure age; exposure level; light and temperature. Saprophytic colonization of Biomphalaria glabrata immobilizes cercariae thus reducing cercarial output and infectivity. Schistosomules produced artificially are similar to those developing after skin penetration as assayed ultrastructurally and biologically. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA087122

Entities

People

  • F. A. Lewis
  • M. A. Stirewalt

Tags

DTIC Thesaurus Topics

  • B Lymphocytes
  • Cells
  • Contracts
  • Critical Temperature
  • Filtration
  • Fungi
  • Infection
  • Lymphocytes
  • Maintenance
  • Parasites
  • Parasitology
  • Polysaccharides
  • Procurement
  • Schistosoma
  • Schistosoma Mansoni
  • Worms
  • Wound Infections

Fields of Study

  • Biology

Readers

  • Marine Ecological Systems Migration
  • Mathematics or Statistics
  • Microbial Pathology