YR9Bio

A vaccine containing a dead or weakened form of the pathogen is injected in to the patient.

In the body the white blood cells meet the dead or weakened pathogen.

The white blood cells produce antibodies slowly until they produce one that has the correct shape.

When the white blood cell produces an antibody with the correct shape it attaches to the antigen.

This dead or weakened pathogen is then destroyed or ingested by other white blood cells.

The…