What does the flu do to the human body?

Influenza is a common viral infection that can be deadly. Here's a look at how the flu infects the body and produces symptoms. Subscribe to The Washington Post on YouTube: http://bit.ly/2qiJ4dy

Follow us:

Twitter: https://twitter.com/washingtonpost
Instagram: https://www.instagram.com/washingtonpost/
Facebook: https://www.facebook.com/washingtonpost/

(Source: Washington Post, https://www.youtube.com/watch?v=hZj1-GVY2kM)