6.1 vaccination

• dead or inactive forms of a pathogen are used to make a vaccine.
• When a vaccine is put into the body, white blood cells respond by producing antibodies.
• Vaccines prevent disease because if the body meets this pathogen, it will quickly produce antibodies.
• specific antibodies recognise a particular antigen on thee pathogen and bind to it.
• The MMR vaccine prevents measles, mumps and rubella.
• Most people in a population need to be vaccinated to protect society from a disease. This is known as herd immunity.