Myself playing a bit of Project Zomboid, and handing out a few tips regarding this specific blend of the zombie apocalypse.
I need to straighten out one of my statements in the video. A zombie bite WILL infect you for certain, while a scratch has a CHANCE of infecting you. One of the first symptoms of the infection is constant high pain. If the pain does not go away after a few in-game hours, you are most likely infected. During the final stage of the infection, your health will continue to decrease and worsen.
If you want to see something specific from Project Zomboid, type the request in the comments below.