Vaccination

Question 1

What does vaccination do

Answer 1

Protects from future infections

Question 2

What are booster injections

Answer 2

Increase the levels of antibodies again when vaccinations wear off over time

Question 3

What are the 2 pros of vaccination

Answer 3

1) They have helped to control lots of infectious diseases that were once common
2) Epidemics can be prevented if a large percentage of the population is vaccinated

Question 4

Explain how vaccinations work

Answer 4

1. Small amounts of dead/inactive microorganisms are injected into the body
2. The microorganisms carry antigens which cause the body to produce antibodies to attack the, although this causes no damage
3. If live microorganisms of the same type invade, the White blood cells can rapidly mass produce antibodies to kill the antigens

Question 5

What are 2 cons of vaccination

Answer 5

Vaccines don’t always work because sometimes they don’t provide immunity

Sometimes, although rare, people can have a bad reaction to a vaccine

Question 6

Explain how epidemics can be prevented by vaccinating a large portion of the population

Answer 6

Even those that aren’t vaccinated are less likely to catch the disease because there are fewer people able to pass it on

Question 7

What happens if a significant amount of people aren’t vaccinated

Answer 7

Disease can spread quickly throughout them and becomes an epidemic

Question 8

What is an epidemic

Answer 8

A big outbreak of disease