What is Yellow Fever?
A virus/disease/illness
Who first believed mosquitoes were spreading yellow fever?
Carlos Finlay
What did the scientists originally want to find out about yellow fever? (What was causing it, how it spread, or how to stop it?)
How it spread
What were health workers giving people in Brazil?
Yellow Fever Vaccines
What does "head off" mean in "head off a catastrophe"?
Stop or prevent
What insect spreads yellow fever to humans?
Mosquitos
Who was the leader of the team that investigated yellow fever in Cuba?
Walter Reed
What did the contaminated clothing experiment help show?
It was not contaminated clothing causing the spread
What did health workers do when people didn't come to get vaccinated?
They brought the vaccines to the people
What does "circling" mean when yellow fever is "circling" a city?
Moving around and threatening it
How does an infected mosquito transmit yellow fever when it bites a person?
Through infected saliva/blood
Which scientist became sick with yellow fever and died during the investigation?
Jessse Lazear
What did the mosquito experiment help show?
Mosquitoes could spread yellow fever
What kind of mosquito was threatening Brazil's cities?
Aedes aegypti
The author calls the fight against yellow fever a "battle." What is it being compared to?
A war
What was created to prevent people from getting yellow fever?
a vaccine
What did James Carroll eventually believe about the germ that caused yellow fever?
It was much smaller than bacteria
Why did scientists use volunteers in their experiments? What were they experimenting?
To test how yellow fever was spread
What two problems made Brazil's vaccination effort harder?
Government delays and false rumors about the vaccine
If a question asks you for evidence, what should you look for? Where?
Details from the text that support the answer
Why did some volunteers NOT get yellow fever after being bitten by mosquitoes?
The mosquitoes were not able to spread the virus yet
What important rule did Walter Reed's experiments help establish for future experiments with people?
Volunteers should be told all of the risks
What did the experiments prove about the mosquito theory?
Mosquitoes spread yellow fever
What kind of weather could make the outbreak spread faster?
Hot, rainy weather
If a question asks what event was most significant, what are you being asked to find?
The event that had the greatest or most important effect