The Flu Vaccine is Effective

The video discusses the effectiveness of the flu vaccine, which is reported to be 23% this year. It explains how the CDC calculates vaccine effectiveness and compares it to previous years. Despite the lower effectiveness, the video emphasizes the importance of getting vaccinated and practicing good hygiene. It addresses common misconceptions and highlights research findings, including the number needed to treat (NNT) for well-matched and poorly matched vaccines. The video concludes with practical advice on flu prevention and stresses that the benefits of vaccination outweigh the risks.

What percentage of people with influenza were vaccinated according to the CDC's findings?

• 23%

• 49%

• 56%

• 62%

How does the CDC calculate the effectiveness of the flu vaccine?

• By surveying public opinion on the vaccine

• By measuring the number of flu cases each year

• By conducting a randomized controlled trial

• By comparing the number of vaccinated and unvaccinated people who get the flu

What is a common misconception about the flu vaccine?

• It is 100% effective in preventing the flu

• It is only effective in certain age groups

• It causes the flu

• It is not necessary every year

What does NNT stand for in the context of flu vaccines?

• Number Needed to Trust

• Number Needed to Try

• Number Needed to Test

• Number Needed to Treat

Why is it important to practice good hygiene even if vaccinated?

• The vaccine is not 100% effective

• Hygiene practices are more effective than vaccines

• Hygiene practices are required by law

• Vaccines are only effective for a short period