Rabies has been scaring populations for thousands of years, but it's scary for more reasons than just a painful bite. Once the virus is inside us, it not only destroys our body, but damages our mind, and it can happen fast, or lay dormant for years before fatally attacking. So how exactly do we get from a dog bite to a complete behavioral change to...death?
SICK is a new series that looks at how diseases actually work inside our body. We'll be visiting medical centers and talking to top researchers and doctors to uncover the mysteries of viruses, bacteria, fungi and our own immune system. Come back every Tuesday for a new episode and let us know in the comments which diseases you think we should cover next.