what happens when herd immunity breaks down?

How would you summarize Edward Jenner’s accomplishments?

All medical procedures, including vaccination, carry some risk. How much risk do you feel is acceptable? Should that risk be balanced between the individual and the general public, or is it more important to protect one over the other?

Conduct some independent research on the term “herd immunity”. How does it work and what happens when herd immunity breaks down? 300 WORDS]]>