Ebola outbreak: US will not enforce quarantine US medics returning from treating Ebola patients in West Africa will be actively monitored but not placed in quarantine under new US health rules. The federal guidelines came after a nurse was put in isolation in a tent in New Jersey, a decision condemned by UN Secretary-General Ban Ki-moon. Meanwhile, Australia has been criticised for a West Africa visa ban. People cannot spread the disease until they develop symptoms. The UN Secretary-General's spokesman said returning health workers are exceptional people who are sacrificing for humanity and should not be subjected to restrictions that are not based on science. BBC