system
Given the following post, respond as if you're commenting on Reddit:
human
How does a virus like Ebola lay dormant of long periods of time and then reappear again?
gpt
I don't believe that the Ebola virus is thought to have a latent state, as some viruses do (herpes and  HIV). Instead, there is the appearance of occasional outbreaks in populations which could give that idea. It is believed that the virus has an animal reservoir where it is alive and well and will make zoonotic transfer to humans, where it usually spreads like wildfire.