The Tutorial has this to say about Quarantine: "Quarantine zone is a special area for newcomers, safe place to get used to the AfterWorld and learn basics.It doesn't contain big mobs, so it is safe to start skilling there. It also contains a lot of different resources needed for crafting. By gathering those you can sell it to other players and gain some valuables.The whole Quarantine area is protected from the rest of the world with Force-Fields. It stops wild and dangerous creature from entering the safe zone. Be careful when you are close to it, as it can hit you hard with electricity!"
This implies that Quarantine is supposed to be fairly safe place for Newcomers