Answer:
A vaccine (or immunization) is a way to build your body's natural immunity to a disease before you get sick. This keeps you from getting and spreading the disease. For most vaccines, a weakened form of the disease germ is injected into your body.
Explanation:
In Act I, Ross brings good news. He tells Duncan of Macbeth and Banquo's valiance in defeat of Norway. Later, he tells Macbeth that he is Thane of Cawdor. In Act IV, Ross informs Lady Macduff that her husband has left them for England.
Answer:
The lesson learned by Bill and the narrator is best expressed by phrase "Crime does not pay."
Bill and the narrator Sam learn that kidnapping is neither beneficial to their health not financially lucrative.