Question:
A subunit vaccine is:
A subunit vaccine is:
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Subunit vaccines: contain specific antigenic parts.
Examples: Hepatitis B, HPV vaccines.
Safer than whole pathogen vaccines.
Examples: Hepatitis B, HPV vaccines.
Safer than whole pathogen vaccines.
Updated On: Aug 18, 2026
- A purified part or pieces of the antigen
- A whole purified virus
- An expensive type of vaccine
- A Hepatitis-B vaccine
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Vaccines are classified based on their composition.
Subunit vaccines contain specific parts of the pathogen.
Step 2: Key Formula or Approach:
No specific formula.
Need to understand vaccine types.
Step 3: Detailed Explanation:
A subunit vaccine contains purified parts or pieces of the antigen.
It includes proteins, polysaccharides, or peptides.
It does not contain the whole pathogen.
Whole virus vaccines are different.
Subunit vaccines are not necessarily expensive.
Hepatitis-B vaccine is an example of a subunit vaccine.
Thus, the definition is a purified part or pieces of the antigen.
Step 4: Final Answer:
A subunit vaccine is a purified part or pieces of the antigen.
Hence, the correct option is (A).
Vaccines are classified based on their composition.
Subunit vaccines contain specific parts of the pathogen.
Step 2: Key Formula or Approach:
No specific formula.
Need to understand vaccine types.
Step 3: Detailed Explanation:
A subunit vaccine contains purified parts or pieces of the antigen.
It includes proteins, polysaccharides, or peptides.
It does not contain the whole pathogen.
Whole virus vaccines are different.
Subunit vaccines are not necessarily expensive.
Hepatitis-B vaccine is an example of a subunit vaccine.
Thus, the definition is a purified part or pieces of the antigen.
Step 4: Final Answer:
A subunit vaccine is a purified part or pieces of the antigen.
Hence, the correct option is (A).
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