Topic 3 Vaccination +

Question 1

What is injected into you in vaccinations

Answer 1

Small amounts of dead or inactive pathogens

Question 2

Even though the pathogens are harmless what do they carry

Answer 2

Antigens which the body produces antibodies to attack

Question 3

What does the MMR vaccine contain weakened versions of

Answer 3

The viruses that cause measles, mumps and rubella

Question 4

What happens if live pathogens of the same type appear after the vaccination

Answer 4

The white blood cells can rapidly mass produce antibodies to kill off the pathogen

Question 5

Pros of vaccinations

Answer 5

Have helped control lots of communicable disease that were once common in the uk (polio, measles, whooping cough, rubella, mumps, tetanus) small pox no longer occurs and polio infections have fallen by 99%
Epidemics can be prevented if a large percentage of the population is vaccinated and that way people who aren’t vaccinated are unlikely to catch the disease because fewer people are able to pass it on

Question 6

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

Answer 6

The disease can spread quickly through them and lots of people will be sick at the same time

Question 7

Cons of vaccines

Answer 7

Don’t always work and sometimes don’t give you immunity
Can sometimes have a bad reactions to vaccines e.g swelling, fever, seizures But are very rare