Vaccine Strategy

1. What question do experts raise in the story?

• Are more shots needed?

• Should changes be made to existing shots?

• Should new vaccines be developed?

• Experts raise all of these questions.

2. What term does Dr. Kuritzkes use when talking about vaccination and protecting people from mild infection?

• Impossible

• Simple

• Unrealistic

• Straightforward

3. Why is it important to make shots even more widely available now?

• It will provide T cell protection to more people.

• It will cost less money over the long term.

• It will stop the coronavirus from evolving.

• It will reduce chances for the virus to mutate.

4. What does the story say about the immune system?

• The immune system keeps antibody levels high for a long time after a second dose.

• T cell levels drop off at about the same rate that antibody levels do.

• T cells help prevent serious illness even when antibody levels decline.

• The story says all of these about the immune system.

5. In the sentence, "COVID-19 vaccines are saving lives but they cannot stop new versions of coronavirus from appearing", the underlined word refers to:

• COVID-19

• versions

• vaccines

• lives

6. In (...) “we may not need to be doing as much fine-tuning of the vaccines every time a new variant comes”, the best definition for the underlined words is:

• making several experiments in order to achieve perfection.

• making relevant changes in something so it will work properly.

• doing a lot of research in order to find the solution to a big problem.

• making small adjustments in order to achieve the best performance.