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Vaccinations

Vaccinations

Active versus Passive Immunity

Active versus Passive Immunity

Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
Active Immunity
Active immunity refers to the resistance one develops...

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Related Experiment Video

Updated: Dec 8, 2025

In Vitro ELISA Test to Evaluate Rabies Vaccine Potency

In Vitro ELISA Test to Evaluate Rabies Vaccine Potency

Published on: May 11, 2020

Attenuation Methods for Live Vaccines.

Dipasree Hajra¹, Akshay Datey², Dipshikha Chakravortty^3,4

¹Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India.

Methods in Molecular Biology (Clifton, N.J.)

|September 22, 2020

Summary

This summary is machine-generated.

Live attenuated vaccines, a successful method since Edward Jenner

Keywords:

Gene inactivation Irradiation Live attenuated strains Mutagenesis microRNA

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Area of Science:

Immunology and infectious diseases
Microbiology and virology
Parasitology

Background:

Vaccine development is a critical area of scientific research.
Live attenuated vaccines are a highly successful vaccine generation strategy.
This method has been employed for viruses, bacteria, and parasites.

Purpose of the Study:

To review common and efficient methods for generating live attenuated vaccine strains.
To consolidate knowledge on live attenuated vaccine production across different pathogen types.

Main Methods:

Focuses on the principle of virulence attenuation in pathogens.
Discusses the application of this method to viruses, bacteria, and parasites.

Main Results:

Attenuated pathogen strains are used to create effective vaccines.
These vaccines elicit a robust immune response.
Protection against virulent pathogens is conferred.

Conclusions:

Live attenuated vaccines represent a cornerstone of modern vaccinology.
Virulence attenuation is a key strategy for developing vaccines against diverse pathogens.
This approach continues to be a vital area of research and application.