Vaccines and Herd Immunity

How do vaccines help the immune system?

• By teaching it to identify viruses

• By hiding viruses from it

• By weakening it

• By spreading viruses

What is herd immunity?

• A vaccine for polio

• A way to prevent the spread of diseases

• A virus from China

• A disease called covid-19

What is the best way to protect yourself against viruses?

• Getting vaccinated

• Eating a healthy diet

• Avoiding people who are coughing or sneezing

• Washing your hands frequently

What is the author's main purpose for including information about the coronavirus?

• To relate the topics of vaccines to a current event

• To explain how vaccines prevent diseases

• To show how scientists create new vaccines

• To provide an example of herd immunity

What is the author's point of view?

• People have good reasons to be afraid of getting vaccinated

• Vaccines can be created quickly when new diseases arise

• People who wash their hands do not need to be vaccinated

• Vaccines are an important invention that keep people healthy

What is the role of vaccines in the immune system?

• To weaken the immune system

• To hide viruses from the immune system

• To help the immune system identify viruses

• To spread viruses throughout the body

When enough people get vaccinated, everyone is much safer.

Which sentence from the article provides the BEST support for the statement above?

• When i was 8 years old, I remember watching a cartoon that explained the immune system to children, Nashif wrote in an email.

• Then, when the body comes into contact with the real thing-a healthy virus- it knows how to protect against it.

• Vaccines act as a firewall that prevents the spread of diseases to others, Nasif said.

• She also suggested avoiding being close to people who are coughing or sneezing.

What is author's MAIN purpose for including information about the coronavirus?

• to relate the topics of vaccines to a current event

• to explain how vaccines prevent diseases

• to show how scientists create new vaccines

• to provide an example of herd immunity

What is the author's point of view?

• People have good reasons to be afraid of getting vaccinated.

• Vaccines can be created quickly when new diseases arise.

• People who wash their hands do not need to be vaccinated.

• Vaccines are an important invention that keep people healthy.