Yellow Fever Facts
Key Figures in the Fight
Research & Discoveries
Mosquitoes & the Spread
Challenges & Solutions
100

This is the main cause of yellow fever.

What is a virus?

100

He was the chief investigator of the team that proved yellow fever was spread by mosquitoes.

Who is Dr. Walter Reed?

100

In the late 1920s and early 1930s, scientists learned that these types of animals could get yellow fever.

What are monkeys?

100

A mosquito must bite a yellow fever patient within this many days of the illness in order to get infected.

What is three days?

100

This is one of the main ways that scientists have tried to stop yellow fever from spreading.

What is mosquito control (killing mosquitoes)?

200

The disease spread by mosquitoes was first discovered to be carried by this type of mosquito.

What is the Aedes mosquito?

200

He was a Cuban doctor who first proposed the mosquito theory of yellow fever.

Who is Dr. Carlos Finlay?

200

The virus that causes yellow fever is smaller than this microorganism, which was believed to be the cause of many diseases.

What are bacteria?

200

Female mosquitoes can pass the yellow fever virus to their offspring through this.

What are eggs?

200

This method is used to destroy mosquito eggs and larvae in still water.

What is spraying oil?

300

By the end of 1901, this city in Cuba was free of yellow fever after a successful mosquito eradication campaign.

What is Havana?

300

He continued to search for the yellow fever germ until his death in 1907 and believed the disease was caused by a microbe smaller than bacteria.

Who is Dr. James Carroll?

300

This is how female mosquitoes transmit the yellow fever virus to humans.

What is by injecting infected saliva into a wound while sucking blood?

300

The yellow fever virus may stay in the mosquito's body for this many days before the mosquito can infect another person.

What is seventeen days?

300

These countries face a significant challenge in fighting yellow fever due to a lack of funds for vaccines.

What are poor countries?

400

This is the name of the famous canal that was safely built between 1902 and 1914 thanks to the elimination of yellow fever.

What is the Panama Canal?

400

He was awarded the Congressional Gold Medal in 1929 for his work on yellow fever, along with the other volunteer scientists.

Who is Dr. Jesse Lazear?

400

In the early 1900s, researchers believed that yellow fever was spread by these insects.

What are mosquitoes?

400

In addition to biting infected humans, mosquitoes can also spread the yellow fever virus by this process.

What is by passing the virus through their saliva?

400

In some areas, this method of killing mosquitoes is controversial because of potential environmental harm.

What are insecticides?

500

This is the year Dr. Max Theiler developed a vaccine for yellow fever.

What is 1936?

500

This American Army hospital was named after Dr. Walter Reed in 1909.

What is the Walter Reed Army Hospital?

500

By 1927, scientists knew that yellow fever was caused by this type of microorganism.

What is a virus?

500

Researchers discovered that the yellow fever virus enters every cell of a mosquito’s body, including this part.

What is the mosquito's body?

500

In 2008, this country had a yellow fever outbreak and faced a shortage of vaccines, leading to chaos at clinics.

What is Paraguay?