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Related Experiment Video

Updated: Apr 30, 2026

Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients

Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients

Published on: August 22, 2018

Does host immunity influence helminth egg hatchability in the environment?

K A Lambert¹, A K Pathak¹, I M Cattadori¹

¹Center for Infectious Disease Dynamics and Department of Biology, The Pennsylvania State University,University ParkPA16802,USA.

Journal of Helminthology

|May 1, 2014

Summary

This summary is machine-generated.

Host immunity plays a minor role in the hatching of helminth eggs. This study found little association between antibodies and egg hatchability or volume in Trichostrongylus retortaeformis and Graphidium strigosum.

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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children

Published on: August 22, 2012

Area of Science:

Veterinary Parasitology
Immunology
Ecology

Background:

Helminth transmission relies on the environmental survival of eggs and larvae.
Environmental factors are known to influence helminth egg hatching, but the role of host immunity is less understood.

Purpose of the Study:

To investigate the influence of host-specific antibodies on the hatching rate and volume of gastrointestinal helminth eggs.
To examine the association between antibody presence in serum and on eggshells with egg phenology.

Main Methods:

Analysis of egg hatching rate and volume over 15 weeks for Trichostrongylus retortaeformis and Graphidium strigosum.
Quantification of specific antibodies in host serum and bound to parasite eggshells.
Correlation analysis between antibody levels and egg characteristics.

Main Results:

Hatching rates were consistently higher for T. retortaeformis than G. strigosum, with no weekly variations observed.
Egg volume increased for G. strigosum but decreased for T. retortaeformis over the study period.
Evidence of egg-specific antibodies was found, with fewer antibodies bound to T. retortaeformis eggs compared to G. strigosum eggs, but little association with hatchability or volume.

Conclusions:

Host antibodies appear to play a minor role in regulating the egg hatching rate of these gastrointestinal helminths.
Further research may be needed to fully elucidate the complex interactions between host immunity and parasite egg survival in the environment.