Flu Evolution and Spread Insights

The video explores Trevor Bedford's research on flu, focusing on how flu viruses move globally and their genetic evolution. It highlights the differences between Flu A and B, particularly in their mutation rates and travel patterns. The study reveals that H3N2 spreads rapidly due to adult travel, while Flu B is more localized. Understanding these patterns aids in developing targeted vaccines, improving flu prevention strategies worldwide.

What is the primary focus of Trevor Bedford's study on flu?

• The impact of flu on human health

• The symptoms of different flu strains

• The movement and origin of flu viruses

• The economic cost of flu outbreaks

What is the typical region of origin for the flu strain that starts the flu season?

• North America

• South America

• South China, India, or Southeast Asia

• Europe

What method did Trevor Bedford use to study flu evolution?

• Creating a family tree using genetic material

• Studying flu-related hospitalizations

• Surveying flu patients

• Analyzing flu symptoms

How does Influenza B differ from Flu A in terms of evolution?

• Flu B evolves faster than Flu A

• Flu B evolves at the same rate as Flu A

• Flu B evolves more slowly than Flu A

• Flu B does not evolve at all

What is a significant finding about the lifestyle of H3N2?

• It is only found in Southeast Asia

• It does not mutate

• It evolves quickly and infects adults

• It evolves slowly and infects children

What surprising behavior was discovered about Influenza B?

• It evolves faster than H3N2

• It behaves very differently from Flu A

• It behaves similarly to Flu A

• It does not mutate

Why does H3N2 spread more rapidly than Flu B?

• H3N2 is airborne

• H3N2 is resistant to vaccines

• H3N2 infects more adults who travel frequently

• H3N2 is more contagious

What role do airplanes play in the spread of H3N2?

• They only spread Flu B

• They facilitate the global spread of H3N2

• They have no impact on H3N2 spread

• They prevent the spread of H3N2

What is the main reason Flu B does not spread as widely as H3N2?

• Flu B is less contagious

• Flu B primarily infects children who travel less

• Flu B is more resistant to vaccines

• Flu B is only found in rural areas

How can understanding flu migration patterns improve vaccines?

• By eliminating flu entirely

• By reducing the need for vaccines

• By tailoring vaccines to specific regions

• By making vaccines cheaper