vaccines

• Vaccines were first discovered when "small pox" was a common and deadly disease.
• Jenner discovered that milkmaids were immune to the disease due to them previously contracting "cow pox".
• Vaccines contain dead/inactive parts of the pathogen meaning they won't cause any harm when injected into the body.
• Non communicable diseases are illnesses that can't be spread between people.
• Communicable diseases are illnesses that can be spread between people.
• Vaccinations help to prevent people from spreading/catching the disease at risk.
• Vaccines activate the white blood cells so when the pathogen does enter the body, they can become active and multiply to fight the disease and prevent the person from being ill.
• The first vaccine was developed by Edward Jenner who used cowpox virus to protect against smallpox.
• In the UK many people get vaccinated for measles.