Although vaccines cannot be used to treat
a person who is sick, they can help to
prevent infections. Vaccinations tell the
body to create "memory cells", which will
function later to create antibodies against
certain pathogens. When a person is
vaccinated, what are they injected with?
antibodies to a disease bacterium
blood from a person who has had the
disease
☐ live, inactive viruses
O weakened viruses or antigens from the
virus