Quiz - Good Air Flow May Help Protect You From COIVD-19
Take this short quiz to test your understanding of the story.
Question 1 / 4
How does ventilation affect the virus that causes COVID-19?
How does ventilation affect the virus that causes COVID-19?
![](https://gdb.voanews.com/d1bbd3b1-0e49-4a65-8bc5-10c9fcaf69ae_w250_r1_s.jpg)