Quarantine is the best way to control COVID-19
That can be really harmful if everyone runs away. The COVID-19 spread in this way.
If you're not staying home for quarantine, you'd get your family and friends at risk.
Why China could succeed in controlling the virus. They're quarantine themself as much as possible. The virus is really bad for health. It's not normally flu.
I believe the mask is the best way to protect yourselves if you're sounding by the virus.