Nothing is impossible with the little knowledge humans have, but the likelihood of humans dying from a virus then coming back to "life" is highly improbable. If there was a virus with the symptoms we associated with Zombies, the infected would probably not die. It would probably just be an elevated or modified version of rabies.
I can say one thing, though. There will be no zombies flying out of graves. It would be hard for a healthy, strong humans to escape from a locked coffin buried under 10 feet of dirt, but for a "half-dead," half-functioning, body to escape, forget about it.
I wouldn't be too concerned. It would spread to the media pretty fast and as long as it doesn't start in your city or state, you'd have plenty of time to prepare.
theory
Common house lizard is Gecko .
western lowland gorillaWestern lowland gorilla
Yes, they scientifically do eat weasels this comes from a highly trained professor.
No. In fact, all scientific evidence indicates that mermaids do not exist.
No. This is, technically and scientifically speaking, not possible.
Scientifically it isn't possible :)
Necromancy, as a form of magic, is scientifically impossible.
Such a thing is not scientifically possible.
In your dreams, this is not scientifically possible.... yet
Yes because when you are really tired, it is scientifically possible to be out of energy
Yes it is certainly scientifically possible. See links on terraforming and in particular Mars.
no it is scientifically proven that pigs cant and never will fly
It's not logically nor scientifically possible.
It is scientifically and surgically possible.
It is not scientifically possible to turn a dog into another creature.
Not scientifically. But in some religions Mary has Jesus with out sexual intercourse.