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Component Vaccines:
Component vaccines are made from antigenic parts of pathogens. The injection
of cellular components of the infectious microorganism into a person causes
their immune system to respond; however, this response is much less effective
than that caused by live vaccines. Because of this, component vaccines often
require boosters to maintain immunity (Okonek).
Because component vaccines are not made from living organisms, they cannot
cause infection.
An example of a component vaccine is the Haemophilus influenzae (HIB) vaccine. |