Assertion: vaccine's agent | /r/CapableOf | replicate within the host
Facets:
Source sentences:
text: For over a hundred years vaccination has been effected by one of two approaches: either introducing specific antigens against which the immune system reacts directly; or introducing live attenuated infectious agents that replicate within the host without causing disease synthesize the antigens that subsequently prime the immune system.
text: For over a hundred years vaccination has been effected by one of two approaches: either introducing specific antigens against which the immune system reacts directly; or introducing live attenuated infectious agents that replicate within the host without causing disease synthesize the antigens that subsequently prime the immune system.