I never claimed to be a virus expert. However, the real experts, the ones that know about this shit 1000x better than you, think it's serious enough to declare it a global emergency and to halt travel. Experts (i.e. real experts, not wannabes like you) in China think it was serious enough to shutdown major cities, and during Chinese New Year nonetheless.
Even a simpleton like you can appreciate how much analysis and consideration goes into an unprecedented decision like that, right?
Not everyone can be as physically gifted as you but Jesus, have some consideration for the many that have died. You don't think the elderly and sick deserve to live??? In China, do you realize how many children are looked after by their grandparents...what's going to happen to them if one or both should die?
Like I said, go to summer school, get your high school diploma and then come back...