Subunit vaccines contain only parts of the virus or bacteria, such as proteins or sugars, that stimulate the immune system. These vaccines are known for their safety profile since they do not contain live components of the pathogen.
Example: The Hepatitis B vaccine is a subunit vaccine that contains only the surface antigen of the virus, eliciting a strong immune response.
Nursing Consideration: Nurses should educate patients that subunit vaccines generally require multiple doses to achieve full immunity. They are also suitable for immunocompromised individuals.
