How Vaccines Work

In what year did Edward Jenner conduct his groundbreaking experiment that led to the first vaccine?

• 1796

• 1896

• 1696

• 1996

Which scientist is credited with injecting material from a cowpox virus into an 8-year-old boy to prevent smallpox?

• Louis Pasteur

• Edward Jenner

• Robert Koch

• Alexander Fleming

What type of virus material did Edward Jenner use in his initial experiment?

• Smallpox virus

• Chickenpox virus

• Cowpox virus

• Measles virus

The material used by Jenner for inoculation originated from which source?

• A human patient

• A laboratory culture

• An animal

• A plant extract

How old was the boy who was the subject of Edward Jenner's first vaccination experiment?

• 6 years old

• 8 years old

• 10 years old

• 12 years old

What was Edward Jenner's initial hypothesis regarding the cowpox virus material?

• It would cause a new illness

• It would have no effect on humans

• It would provide protection against smallpox

• It would worsen existing conditions

Edward Jenner's experiment aimed to protect people from which deadly disease?

• Cowpox

• Chickenpox

• Smallpox

• Measles

What was the relationship Jenner observed between cowpox and smallpox?

• They were identical diseases

• Cowpox was a more severe form of smallpox

• Cowpox infection offered immunity to smallpox

• Smallpox infection offered immunity to cowpox

What was the ultimate goal of Jenner's work with the cowpox virus?

• To understand viral replication

• To develop a new diagnostic tool

• To prevent widespread smallpox epidemics

• To create a universal cure for all diseases

Before the development of the vaccine, what was a significant characteristic of smallpox?

• It was easily treatable

• It caused minor discomfort

• It led to deadly outbreaks

• It only affected animals