Directions: Read the story. Unscramble the words below and enter them in the boxes. Click the button to check your work.
Walter Reed, an American medical doctor had received his medical degree by the
time he was 18 years old. He joined the Army and became a captain. For 16
years he had served in an outpost far away from other doctors. He wanted to be
able to study and learn more about medicine, so he asked for a four month
leave. He learned so well they allowed him to study for seven months at Johns
Hopkins Hospital. He continued to study and do experiments at the Army
outpost. He and some other doctors studied typhoid fever and discovered it was
carried by flies. Yellow fever was a dreaded disease. 90,000 people in the
United States had died of the disease. Many American soldiers in Cuba had died
also. Reed observed that people who cared for the patients with yellow fever
didn't usually get the disease. His conclusion was: people didn't catch it
from each other. Reed began looking for answers. He remembered the research
they had done on typhoid fever. He wondered if maybe mosquitos might be
spreading it. Some of the doctors and soldiers volunteered to take part in the
experiment. The mosquitos were put in test tubes. First they bit the arms of
men who already had yellow fever. Then they were allowed to bite the arms of
people who didn't have the disease. After many tests, they decided the
mosquito did carry the disease from one person to another. The next step was
to get rid of the mosquitos. They sprayed the areas of water where the
mosquitos were hatching, with chemicals. This stopped the spread of the
disease. The Walter Reed Army Medical Center in Washington D.C. is named in
honor of him.