Quiz - Higher Flu Rates Reported Across the World
Now, test your understanding by taking this short quiz.
Question 1 / 4
What is one reason this winter’s flu outbreak in the U.S. is expected to be one of the most severe in 15 years?
![](https://gdb.voanews.com/e4ac3e79-740b-4698-a06c-3f88f39c5c23_w250_r1_s.jpg)