Penetration Enzymes of Schistosome Cercariae.

Abstract

The infective process during which schistosome cercariae invade the skin of vertebrate hosts includes several aspects about which our knowledge is incomplete. These aspects concern changes in the relationship of the cercariae to the snail host in which they developed, in penetrated vertebrate host skin, and in the invading parasite itself. In order better to understand the infective process, data have been accumulated and analyzed under the following headings: (1) the infective process - fluctuations in snail-cercaria relations; (2) the infective process - the rotifer problem; (3) morphological (fine structural) changes as cercariae transform to schistosomules; and (4) antigenicity of secreted cercarial preacetabular enzyme.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1979
Accession Number
ADA082887

Entities

People

  • F. A. Lewis
  • M. A. Stirewalt

Organizations

  • Instituto de Investigaciones Biomédicas

Tags

DTIC Thesaurus Topics

  • Antibodies
  • B Lymphocytes
  • Cells
  • Critical Temperature
  • Filtration
  • Fungi
  • Immune Serums
  • Infection
  • Lymphocytes
  • Maintenance
  • Parasites
  • Polysaccharides
  • Schistosoma
  • Schistosoma Mansoni
  • Tissues
  • Worms
  • Wound Infections

Fields of Study

  • Biology

Readers

  • Marine Ecological Systems Migration
  • Molecular and Cellular Biochemistry
  • Theoretical Analysis.