Difference Between Antigen And Pathogen
The major differences between antigen and pathogens are given below:
Category | Antigen | Pathogen |
Definition | Substances that trigger an immune response in the body | Microorganisms or agents that cause diseases in host organisms |
Source | Molecules, fragments, or entire organisms | Bacteria, viruses, fungi, parasites, prions |
Types | Exogenous (from external sources), Endogenous (within the body), autoantigens | Bacteria, viruses, fungi, parasites, prions |
Immunogenicity | Can vary in immunogenicity, provoking different immune responses | Can tigger immune responses in the host |
Involvement in disease | Can be derived from pathogens or non-infectious sources | Causative agents of infectious diseases |
Role in immune response | Triggers immune response, production of antibodies, and immunological memory | Actively invade the host, evading immune defenses |
Diagnostic significance | Used in diagnostic tests (antigen/antibody detection assays) | Identified through laboratory techniques for accurate diagnosis |
Vaccination potential | Key components in vaccine development to stimulate immunity | Targeted for developing vaccines to provide protection |
Examples | Pollen, bacteria, viruses, allergens, cancer cells | Streptococcus bacteria, influenza virus, malaria parasite |
Difference Between Antigen and Pathogen
The difference between antigens and pathogens lies in their roles within the immune response. A pathogen is a harmful microorganism that can cause disease, while an antigen is a specific molecule or part of the pathogen that triggers the body’s immune response.
In this article, we will cover the difference between antigens and pathogens and understand their role in immunology.
Table of Content
- Antigen Meaning
- Pathogens Meaning
- Difference Between Antigen And Pathogen
- Conclusion – Difference Between Antigen and Pathogen
- Other Articles Related to Difference
- FAQs on Difference Between Antigen and Pathogen