History and Development of Vaccines

The video explores the history of vaccines, starting with ancient Chinese methods of using attenuated viruses to combat smallpox. It then delves into Edward Jenner's groundbreaking work in the 18th century, where he used cowpox to immunize against smallpox, leading to the development of the modern concept of vaccination. The term 'vaccine' is derived from the Latin 'vaccinae', referring to cowpox. The video emphasizes the evolution of vaccination methods and their impact on public health.

In which century did the first recorded use of vaccines occur?

• 10th century

• 8th century

• 12th century

• 14th century

What disease were the early Chinese vaccines used to combat?

• Measles

• Smallpox

• Cholera

• Influenza

How did the Chinese prepare the material used for immunization?

• Boiling the virus

• Freezing the virus

• Drying the scabs in the sun

• Mixing with herbs

What was the method used by the Chinese to introduce the virus to a healthy person?

• Drinking a solution

• Inhaling the powder

• Rubbing on the skin

• Injecting with a needle

Who is credited with the development of the modern concept of vaccination?

• Alexander Fleming

• Robert Koch

• Edward Jenner

• Louis Pasteur

What was the popular belief that led Edward Jenner to investigate cowpox?

• Cowpox could cure smallpox

• Cowpox was a myth

• People who milked cows did not get smallpox

• Cowpox was more deadly than smallpox

How did Jenner test his hypothesis about cowpox and smallpox?

• By injecting cowpox into animals

• By reading ancient texts

• By injecting cowpox into a child

• By observing cowpox in cows

What was the result of Jenner's experiment on the child after injecting the smallpox virus?

• The child died

• The child had mild symptoms

• The child showed no symptoms

• The child developed severe symptoms

How many people did Jenner test his vaccination method on, including his own son?

• 23

• 15

• 10

• 30

What is the origin of the word 'vaccine'?

• From the Greek word for 'immunity'

• From the Greek word for 'disease'

• From the Latin word for 'virus'

• From the Latin word for 'cow'