Read this excerpt from susan butcher and the iditarod trail.

which conclusion can be formed based on the information in

the excerpt?

the doctor got busy. with a good supply of fresh serum, he

was able to continue vaccinations. from then on, there were

no new cases of diphtheria.

diphtheria vaccinations had only a small impact on life in

the early 1900s.

diphtheria vaccinations are no longer administered.

diphtheria vaccinations are still an important part of health

care.

diphtheria vaccinations saved many lives in the early

1900s.

Diphtheria vaccinations saved many lives in the early 1900s.

Option D

Explanation:

Susan Butcher and the Iditarod Trail is a book written by Ellen M Dolan which is based on a real life story. Every year in United states, a dog sled race takes place and the book describes how the women won the race for 3 years straight.

The book describes her courage and willingness to do what she decides to do. It was the year 1925 when the severe diphtheria disease took hold of people’s life. Later, with the help of Diphtheria vaccinations many lives was saved in the early 1900s.

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