<u>Answer:</u>
Eradicating smallpox was successful because of many reasons.
<u>Explanation:</u>
Smallpox was regularly found in an area or we can say it was prevalent in some places. So, mortality rates were high. It was caused by variola virus and affected mainly humans. So, it was essential that such vaccine is developed which can successfully immune people from this disease.
Smallpox vaccine then started spreading across "Europe and North America" and then gradually it spread all over the world and successfully eradicated smallpox by 1980. Other diseases that have been controlled by vaccines are “diphtheria, bacterial influenza, measles, mumps, rubella, and tetanus”.
Answer:(;
Explanation:
The narrator feels really guilty towards the end of the story because he killed the old man.The narrator is clearly guilty of murder but what is important is that he considers himself sane. The purpose of him narrating the story is to tell the reader of his sanity as indicated by his careful and astute planning of the crime.
<span>Benvolio is more concerned with keeping the peace than Tybalt is.</span>