Vaccinations

Question 1

What is a Vaccination?

Answer 1

Vaccination is when a person gets given a dead and weakened form of a pathogen.

Question 2

How does the vaccination work?

Answer 2

When they inject the vaccine, the antigen of the weakened pathogen is recognized by the white blood cell and triggers an immune response, making the white blood cells produce antibodies.

These antibodies are then stored in the memory cells.

This is because if you are infected again by the same pathogen, the white blood cells can rapidly mass-produce the specific antibodies to destroy the pathogen.

Question 3

What does this make the person?

Answer 3

Immune to the pathogens

Question 4

What is herd immunity?

Answer 4

When a large proportion of a population gets vaccinated and becomes immune to a particular disease so it is less easy for the pathogen to spread.