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Related Experiment Video

Updated: Sep 28, 2025

Determination of Tolerable Fatty Acids and Cholera Toxin Concentrations Using Human Intestinal Epithelial Cells and BALB/c Mouse Macrophages

Determination of Tolerable Fatty Acids and Cholera Toxin Concentrations Using Human Intestinal Epithelial Cells and BALB/c Mouse Macrophages

Published on: May 30, 2013

Human Challenge Studies for Cholera.

Mitchell B Cohen^1,2

¹Katharine Reynolds Ireland Chair of Pediatrics, University of Alabama at Birmingham, Physician-in-Chief, Children's of Alabama, Birmingham, AL, USA. mcohen@uabmc.edu.

Current Topics in Microbiology and Immunology

|April 4, 2022

Summary

This summary is machine-generated.

The human challenge model safely and efficiently estimates cholera vaccine protection. This method accelerates research on cholera interventions and immunity, even leading to vaccine licensure.

Keywords:

Cholera Licensure Protective efficacy Safety Vaccine

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Area of Science:

Infectious Diseases
Vaccinology
Clinical Trials

Background:

The human challenge model offers a controlled method for evaluating vaccine efficacy against infectious diseases like cholera.
Traditional field studies in endemic areas present logistical and epidemiological challenges for vaccine evaluation.
The human challenge model has been refined over 50 years for safety and efficiency in vaccine research.

Purpose of the Study:

To provide an overview of the current state of human challenge models for cholera research.
To highlight the utility of challenge models in studying new cholera interventions.
To discuss the historical and ongoing contributions of challenge models to vaccinology.

Main Methods:

Utilizing controlled human infection with a standardized cholera inoculum.
Employing rigorous study designs and safety precautions for ethical human challenge studies.
Leveraging small-group, short-term studies for rapid data acquisition.

Main Results:

Demonstrated efficacy of the human challenge model in estimating vaccine protection against moderate and severe cholera.
Facilitated vaccine licensure through reliable efficacy data.
Enabled research into immune responses, natural immunity, and the role of host factors like gastric acid.

Conclusions:

The human challenge model is a safe, efficient, and valuable tool for cholera vaccine development and research.
It has been instrumental in establishing vaccine efficacy, understanding immunity, and testing novel therapeutics.
Continued use and evolution of the model are crucial for advancing cholera prevention strategies.