Many countries did this already, for example here in Czech Republic you need to stay in quarantine for two weaks if you travelled to affected area (which at thi

Many countries did this already, for example here in Czech Republic you need to stay in quarantine for two weaks if you travelled to affected area (which at this point is pretty much after any travel) or risk jail time. It event went so for as banning cross border work with neighboring countries after a few cases of infection tracked to that.