People may need to wear face coverings and socially distance for several years until we return to normality, a leading epidemiologist has predicted.
Mary Ramsay, the head of immunisation at Public Health England, said basic measures could be in place until other countries successfully roll out jabs.
She also said a return of big spectator events required careful monitoring and clear instructions about staying safe.
The defence secretary has not ruled out the foreign holiday ban being extended.
Ben Wallace told BBC One's Andrew Marr Show that booking a break abroad now would be "premature" and "potentially risky".